A R P     P e c u l i a r     G a l a x i e s


            created: 09-10-2014.             revised: 09-22-2024.

Hello!

per Wikipedia: Interacting galaxies (colliding galaxies) are galaxies whose gravitational fields result in a disturbance of one another. An example of a minor interaction is a satellite galaxy's disturbing the primary galaxy's spiral arms. The satellite's gravity could attract one of the primary's spiral arms. Or the satellite could dive in to the primary, disrupting it.
An example of a major interaction is a galactic collision of two large galaxies. Because of the tenuous distribution of matter in most galaxies, these collisions are not like a head-on car wreak, but more of a gravitational interaction.


American astrophysicist Halton Arp, (1927 - 2013), graduated from Harvard University in 1949 and received his doctorate from Caltech in 1953. In 1957, he became a staff member at Palomar Observatory, and worked there for 29 years. Later, In 1983 he went on to join the staff of the Max Planck Institute for Astrophysics near Munich, Germany.
While at Caltech, he began 'collecting' unusual galaxies that other researchers would drop from their studies as being too unusual or peculiar. Arp realized that these odd galaxies represented different stages in galaxy evolution, and devoted his career to studying them and related quasi-stellar objects (QSOs), utilizing the 200-inch Hale telescope.
This eventually led to his challenging the current interpretation of some of these highly redshifted sources, even calling into question the Big Bang theory. Until his death in 2013, Arp continued to hold his contrary view and published his research in both popular and scientific literature. Today, with modern observatory cameras and space telescopes available, conclusive research has proven Arp's "counter-theories" of intrinsic redshift to be incorrect. But, even though he was eventually proven to be wrong, Halton Arp made significant contributions to astrophysics by his strong challenges to accepted theory, forcing other astronomers to re-validate their assumptions about galaxy formation and cosmology.
Arp's atlas also has become a useful tool for the advanced amateur astronomer looking for deep-sky observing/imaging projects.
The amateur astronomer will find many of the 'Arp' objects listed on star atlas's and observing guides as NGC, IC, and UGC galaxies.

         

Arp compiled a catalog of unusual galaxies titled Atlas of Peculiar Galaxies, which was first published in 1966 which contained photographs of 338 nearby galaxies that did not fall into any of the classic categories of galaxy shapes. Arp's atlas is recognized now as an excellent compilation of interacting and merging galaxies.

In 2006 Amatuer Astronomers Jeff Kanipe and Dennis Webb expanded Arp's atlas into an observers guide, complete with Arp's original images, along with finder charts and CCD images and visual observations from other participating amateurs.
It's a great book to use in the field!!



Additionally, there's several great online resources.
Amateur astronomer Bob Hill of the Amarillo Astronomy Club, has put together a great site of his observations on the 100 best Arp Galaxies by season. You can find the first installment here: Touring the Peculiar Universe:

Scottish amateur David Richards has a very good site of the ARP's visible from his home observatory: David's Astronomy Pages - ARP Peculiar Galaxies:

Also, amateur Alvin Huey has a good observing book on his website that you can purchase.
(he also has a number of free downloads too!) faintfuzzies:

Finally, you can find a PDF of Dr. Halton Arp's atlas online here at: ATLAS OF PECULIAR GALAXIES:

Below is my personal observation list of the 'Arp Atlas of Peculiar Galaxies'.

I currently have 234 out of 338 objects visible from my Pittsburgh, PA latitude of around +40.
Around half of my images were taken using a StellaCam-3 peltier-cooled deepsky video camera. The rest was using a ZWO ASI294MC camera. Each image has minimal processing applied to it: brightness/contrast adjusted, image rotated to match that of the Arp Atlas book, and resized to have the same general field size across images. I then made a negative 'finder chart' with a red line indicating the general location of the peculiarity.

Index:

Arp Object NGC / IC Peculiarity Constellation
Arp 1: NGC2857 (and NGC2854, 2856) Spiral: Low Surface Brightness Ursa Major
Arp 2: UGC10310 Spiral: Low Surface Brightness Hercules
Arp 3: MCG15716 Spiral: Low Surface Brightness Aquarius
Arp 4: MCG-2-5-50 Spiral: Low Surface Brightness Cetus
Arp 6: NGC2537 & NGC2537A Spiral: Low Surface Brightness Ursa Major
Arp 7: MCG-3-23-9 Spiral: Low Surface Brightness Hydra
Arp 8: NGC497 Spiral: Split Arm Cetus
Arp 9: NGC2523 Spiral: Split Arm Camelopardalis
Arp 10: UGC1775 Spiral: Split Arm Cetus
Arp 11: UGC717 Spiral: Split Arm Pisces
Arp 13: NGC7448 Spiral: detached segments Pegasus
Arp 14: NGC7314 Spiral: Detached Segments Piscis Austrinus
Arp 15: NGC7393 Spiral: Detached Segments Aquarius
Arp 16: M66 Spiral: Detached Segments Leo
Arp 18: NGC4088 Spiral: Detached Segments Ursa Major
Arp 19: NGC145 Spiral: Three-Armed Cetus
Arp 20: UGC3014 Spiral: Three-Armed Taurus
Arp 22: NGC4027 & 4027A Spiral: One Armed Corvus
Arp 23: NGC4618 & 4625 Spiral: One Armed Canes Venatici
Arp 24: NGC3445 & MCG101624 Spiral: One Armed Ursa Major
Arp 26: NGC5457 (M101) Spiral: one heavy arm Ursa Major
Arp 27: NGC3631 Spiral: one heavy arm Ursa Major
Arp 28: NGC7678 Spiral: one heavy arm Pegasus
Arp 29: NGC6946 Spiral: one heavy arm Cepheus
Arp 30: NGC6365A & B Spiral: one heavy arm Draco
Arp 31: IC167 Spiral: Integral Sign Aries
Arp 32: UGC10770 Spiral: Integral Sign Draco
Arp 34: NGC4613, 4614, and 4615 Spiral: Integral Sign Coma Berenices
Arp 35: UGC212, PGC1431, PGC1119510, PGC1121695 Spiral: Integral Sign Pisces
Arp 36: UGC8548 (and UGC8560) Spiral: Integral Sign Canes Venatici
Arp 37: M77 Spiral: Low SB companion on arm Cetus
Arp 38: NGC6412 Spiral: Low SB companion on arm Draco
Arp 39: NGC1347 Spiral: Low SB companion on arm Eridanus
Arp 41: NGC1232 Spiral: Low SB companion on arm Eridanus
Arp 42: NGC5829 & IC4526 Spiral: Low SB companion on arm Bootes
Arp 43: IC607 Spiral: Low SB companion on arm Leo
Arp 45: UGC9178 Spiral: Low SB companion on arm Bootes
Arp 46: UGC12665 & 12667 Spiral: Low SB companion on arm Pegasus
Arp 47: MGC33814 Spiral: Low SB companion on arm Bootes
Arp 47, Arp 88, Arp119: CGCG43626,
PGC4728,
UGC849 		Spiral: Low SB companion on arm,
Spiral: large High SB companion on arm,
Elliptical: Close to and Perturbing Spirals 		Pisces
Arp 48: CGCG43626 Spiral: Low SB companion on arm Pisces
Arp 50: IC1520 Spiral: small High SB companion on arm Cetus
Arp 51: MGC-2-1-24 Spiral: small High SB companion on arm Cetus
Arp 52: CGCG421-27 Spiral: small High SB companion on arm Orion
Arp 54: PGC9107 & MGC177 Spiral: small High SB companion on arm Cetus
Arp 56: UGC1432 Spiral: small High SB companion on arm Aries
Arp 59: NGC341 Spiral: small High SB companion on arm Cetus
Arp 61: MCG01253, MCG01255, & UGC3105 Spiral: small High SB companion on arm Eridanus
Arp 64: UGC9503A & 9503B Spiral: small High SB companion on arm Bootes
Arp 65: NGC91 & 93 Spiral: small High SB companion on arm Andromeda
Arp 66: UGC10770 Spiral: small High SB companion on arm Draco
Arp 67: UGC892, MCG0492, MCG0494 Spiral: small High SB companion on arm Cetus
Arp 68: NGC7757 Spiral: small High SB companion on arm Pisces
Arp 69: NGC5579 Spiral: small High SB companion on arm Bootes
Arp 70: UGC934 Spiral: Small High SB companion on arm Andromeda
Arp 71: NGC6045 Spiral: Small High SB companion on arm Hercules
Arp 72: NGC5994 & 5996 Spiral: Small High SB companion on arm Serpens
Arp 73: IC1222 Spiral: Small High SB companion on arm Hercules
Arp 74: UGC1626 Spiral: Small High SB companion on arm Andromeda
Arp 75: NGC702, PGC144368, PGC144370, PGC1064199, PGC1064575 Spiral: small High SB companion on arm Cetus
Arp 76: M90 Spiral: Small High SB companion on arm Virgo
Arp 78: NGC770 & 772 Spiral: Small High SB companion on arm Aries
Arp 79: NGC5490C (and IC982 & 983) Spiral: Small High SB companion on arm Bootes
Arp 80: NGC2633 Spiral: Large High SB companion on arm Camelopardalis
Arp 81: NGC6621 & 6622 Spiral: Large high SB companion on arm Draco
Arp 82: NGC2535 & 2536 Spiral: large high SB companion on arm Cancer
Arp 83: NGC3799 & 3800 Spiral: Large high SB companion on arm Leo
Arp 84: NGC5394 & 5395 Spiral: large High SB companion on arm Canes Venatici
Arp 85: NGC5194-5195 (M51) Spiral: Large High SB companion on arm Canes Venatici
Arp 86: NGC7752 & 7753 Spiral: Large High SB companion on arm Pegasus
Arp 87: NGC3808A & 3808B Spiral: large High SB companion on arm Leo
Arp 88: PGC4728 Spiral: Large High SB companion on arm Pisces
Arp 90: NGC5929 & 5930 Spiral: large High SB companion on arm Bootes
Arp 91: NGC5953 & 5954 Spiral: Large High SB companion on arm Serpens
Arp 92: NGC7603 Spiral: ellipitical companion on arm Pisces
Arp 93: NGC7284 & 7285 Spiral: Elliptical Companion on Arm Piscis Austrinus
Arp 94: NGC3226 & 3227 Spiral: Elliptical Companion on Arm Leo
Arp 95: IC4461 & 4462 & MGC53476 Spiral: elliptical companion on arm Bootes
Arp 98: UGC1095 & MCG5466 Spiral: elliptical companion on arm Triangulum
Arp 99: NGC7547, 49, 50 Spiral: elliptical companion on arm Pegasus
Arp 100: IC18 & 19 Spiral: Elliptical companion on arm Cetus
Arp 101: UGC10164 & 10165 Spiral: Elliptical companion on arm Serpens
Arp 102: UGC10814 Elliptical: Connected to Spirals Hercules
Arp 103: MCG8313 and PGC59062 (Zwickys Triplet) Elliptical: Connected to Spirals Hercules
Arp 104: NGC5216 & 5218 (Keenan's System) Elliptical: Connected to Spirals Ursa Major
Arp 108: MCG4817, 4818, PGC818145, 818640 Elliptical: Connected to Spirals Eridanus
Arp 109: MCG+12-15-17 Elliptical: Repelling Spiral Arms Draco
Arp 110: MCG35810, 35811 & APMUKS Spiral: Repelling Spiral Arms Pisces
Arp 111: NGC5421 & MCG63146 Elliptical: Repelling Spiral Arms Ursa Major
Arp 112: NGC7805 & 7806 Elliptical: Repelling Spiral Arms Pegasus
Arp 113: NGC67, 67A, 68, 69, 70, 71, 72, 72A, & 74 Elliptical: Close to and Perturbing Spirals Andromeda
Arp 116: M60 & NGC4647 Elliptical: Close to and Perturbing Spirals Virgo
Arp 117: IC982 and 983 (and NGC5490C) Elliptical: Close to and Perturbing Spirals Cetus
Arp 118: NGC1143 & 1144 Elliptical: Close to and Perturbing Spirals Cetus
Arp 119: UGC849 & MCG2421 Elliptical: Close to and Perturbing Spirals Pisces
Arp 120: NGC4435 & 4438 Elliptical: Close to and Perturbing Spirals Virgo
Arp 121: MCG1351, 1352 & 1354 Elliptical: Close to and Perturbing Spirals Cetus
Arp 122: NGC6040A & 6040B Elliptical: Close to and Perturbing Spirals Hercules
Arp 123: NGC1888 & 1889 Elliptical: Close to and Perturbing Spirals Lepus
Arp 124: NGC6361 Elliptical: Close to and Perturbing Spirals Draco
Arp 125: UGC10491 Elliptical: Close to and Perturbing Spirals Hercules
Arp 126: UGC1449 Elliptical: Close to and Perturbing Spirals Pisces
Arp 127: NGC191 & IC1563 Elliptical: Close to and Perturbing Spirals Cetus
Arp 128: UGC827 Elliptical: Close to and Perturbing Spirals Pisces
Arp 130: IC5378 Elliptical: Close to and Perturbing Spirals Pegasus
Arp 131: MCG3825 & 3826 Elliptical: Close to and Perturbing Spirals Eridanus
Arp 133: NGC541 Elliptical: with Nearby Fragments Cetus
Arp 134: M49 & NGC4467 Elliptical: with Nearby Fragments Virgo
Arp 135: NGC1023 Elliptical: with Nearby Fragments Perseus
Arp 136: NGC5820 & 5821 Elliptical: with Nearby Fragments Bootes
Arp 140: NGC274 & 275 Elliptical: Material emanating from elliptical Cetus
Arp 143: NGC2444 & 2445 Elliptical: Material emanating from elliptical Lynx
Arp 144: NGC7828 & 7829 Elliptical: Material emanating from elliptical Cetus
Arp 145: UGC1840 Elliptical: Material emanating from elliptical Andromeda
Arp 146: PGC509 & 510 Galaxies: Associated Rings Cetus
Arp 147: IC298 & 298A, & UGCA57 Galaxies: Associated Rings Cetus
Arp 150: NGC7609, PGC71077, MCG15946 & 15948 Galaxies: With Jets Pegasus
Arp 151: MCG91973 Galaxies: With Jets Ursa Major
Arp 152: M87 Galaxies: with Jets Virgo
Arp 153: NGC5128 "Centaurus A" Galaxies: Distrubed with Interior Absorption Centaurus
Arp 155: NGC3656 Galaxies: Distrubed with Interior Absorption Ursa Major
Arp 157: NGC520 Galaxies: Distrubed with Interior Absorption Pisces
Arp 158: NGC523 Galaxies: Distrubed with Interior Absorption Andromeda
Arp 160: NGC4194 Galaxies: Distrubed with Interior Absorption Ursa Major
Arp 164: NGC455 Galaxies: Diffuse Filaments Pisces
Arp 165: NGC2418 Galaxies: Diffuse Filaments Gemini
Arp 166: NGC750 & 751 Galaxies: Diffuse Filaments Triangulum
Arp 168: M32 Galaxies: Diffuse counter-tails Andromeda
Arp 169: NGC7236 & 7237 Galaxies: Diffuse counter-tails Pegasus
Arp 170: NGC7578A, B & C Galaxies: Diffuse counter-tails Pegasus
Arp 179: NPM1G Galaxies: Narrow Filaments Eridanus
Arp 180: MCG1132, PGC1052322, 1053126, 1054318 Galaxies: Narrow Filaments Eridanus
Arp 182: NGC7674, 7675, PGC71507, MCG15981 Galaxies: Narrow Filaments Pegasus
Arp 183: UGC8560 (and UGC8548) Galaxies: Narrow Filaments Canes Venatici
Arp 184: NGC1961 Galaxies: Narrow Filaments Camelopardalis
Arp 185: NGC6217 Galaxies: Narrow Filaments Ursa Minor
Arp 186: NGC1614, PGC1003489, 1001062 Galaxies: Narrow Filaments Eridanus
Arp 187: MCG21340A, PGC980468 Galaxies: Narrow Filaments Eridanus
Arp 188: UGC10214 Galaxies: Narrow Filaments Draco
Arp 190: UGC2320 Galaxies: Narrow Filaments Aries
Arp 200: NGC1134 Spiral: Material Ejected from Nucleus Aries
Arp 201: UGC224, MCG0219, PGC1139985 Spiral: Material Ejected from Nucleus Pisces
Arp 206: NGC3432 Galaxies: Material ejected from Nucleus Leo Minor
Arp 208: MCG83109, 831110, & 831111 Galaxies: Material ejected from Nucleus Hercules
Arp 210: NGC1569 Galaxies: Irregularities, Absorption, and Resolution Camelopardalis
Arp 212: NGC7625 Galaxies: Irregularities, Absorption, and Resolution Pegasus
Arp 213: IC356 Galaxies: Irregularities, Absorption, and Resolution Camelopardalis
Arp 214: NGC3718 Galaxies: Irregularities, Absorption, and Resolution Ursa Major
Arp 216: NGC7679 & 7682 Galaxies: Adjacent Loops Pisces
Arp 219: UGC2812 & 2814 Galaxies: Adjacent Loops Eridanus
Arp 222: NGC7727 Spiral: Amorphous Spiral Arms Pisces
Arp 223: NGC7585 Spiral: Amorphous Spiral Arms Pisces
Arp 224: NGC3921 (and NGC3916) Galaxies: Appearance of Fission Ursa Major
Arp 226: NGC7252 Galaxies: Amorphous Spiral arms Piscis Austrinus
Arp 227: NGC470 & 474 Galaxies: Concentric Ring Cetus
Arp 228: IC62, PGC6634, 6644, 6654, MCG2539 Galaxies: Concentric Ring Pisces
Arp 229: NGC507 & 508 Galaxies: Concentric Ring Pisces
Arp 230: IC51 Galaxies: Concentric Ring Cetus
Arp 231: IC1575 Galaxies: Concentric Ring Cetus
Arp 234: NGC3738 Galaxies: Appearance of Fission Ursa Major
Arp 235: NGC14 Galaxies: Appearance of Fission Pegasus
Arp 236: IC1662, 1663A & 1663B Galaxies: Appearence of Fission Cetus
Arp 237: UGC5044, MCG22412, PCG26830 Galaxies: Appearence of Fission Leo
Arp 238: UGC8335 & MGC101957 Galaxies: Appearance of Fission Ursa Major
Arp 239: NGC5278 & 5279 Galaxies: Appearance of Fission Ursa Major
Arp 240: NGC5257 & 5258 Galaxies: Appearance of Fission Virgo
Arp 241: UGC9425 Galaxies: Appearance of Fission Bootes
Arp 242: NGC4676A & 4676B Galaxies: Appearance of Fission Coma Berenices
Arp 244: NGC4038 & 4039 (Antenna Galaxy) Galaxies: Appearance of Fission Corvus
Arp 246: NGC7837 & 7838 Galaxies: Appearance of Fission Pisces
Arp 247: IC2338 Galaxies: Appearence of Fission Cancer
Arp 249: UGC12891 Galaxies: Appearance of Fission Pegasus
Arp 250: IRAS-F07327+3529 Galaxies: Appearence of Fission Lynx
Arp 251: MCG2337 & MAC0053-3349 Galaxies: Appearence of Fission Cetus
Arp 254: NGC5917, MCG1393 Galaxies: Appearance of Fission Libra
Arp 256: MCG2151, 2152 & APMUKS Galaxies: Appearance of Fission Cetus
Arp 257: UGC4638 Galaxies: Irregular Clumps Hydra
Arp 258: UGC2140 Galaxies: Irregular Clumps Aries
Arp 259: NGC1741A, B, IC339, PGC16571, MRK1089 Galaxies: Irregular Clumps Eridanus
Arp 262: UGC12856 Galaxies: Irregular Clumps Pegasus
Arp 263: NGC3239 Galaxies: Irregular Clumps Leo
Arp 269: NGC4485 & 4490 Galaxies: With Connected Arms Canes Venatici
Arp 270: NGC3395 & 3396 Galaxies: With Connected Arms Leo Minor
Arp 271: NGC5426 & 5427 Galaxies: With Connected Arms Virgo
Arp 272: NGC6050 Galaxies: With Connected Arms Hercules
Arp 273: UGC1810-1813 Galaxies: With Connected Arms Andromeda
Arp 275: NGC2881 Galaxies: Interacting double galaxies Hydra
Arp 276: NGC935 & IC1801 Galaxies: Interacting double galaxies Aries
Arp 278: NGC7253A & 7253B Galaxies: Interacting double galaxies Pegasus
Arp 279: NGC1253 & 1253A Galaxies: Interacting double galaxies Eridanus
Arp 281: NGC4627 & 4631 Galaxies: Double galaxies with infall and attraction Canes Venatici
Arp 282: NGC169 & IC1559 Galaxies: Double galaxies with infall and attraction Andromeda
Arp 284: NGC7714 & 7715 Galaxies: Double galaxies with infall and attraction Pisces
Arp 285: NGC2854 & 2856 (and NGC2857) Galaxies: Double galaxies with infall and attraction Ursa Major
Arp 286: NGC5560,5566, 5569 Galaxies: Double galaxies with infall and attraction Virgo
Arp 288: NGC5221, 5222, PGC93122 & 1438924 Galaxies: Double galaxies with wind effects Virgo
Arp 290: IC195 & 196 Galaxies: Double galaxies with wind effects Aries
Arp 293: NGC6285 & 6286 Galaxies: Double galaxies with wind effects Draco
Arp 294: NGC3786 & 3788 Galaxies: Double galaxies with long filaments Ursa Major
Arp 295: MGC1-60-21 & 22 Galaxies: Double galaxies with long filaments Aquarius
Arp 296: PGC35345 & SDSS (NGC3690 & IC694) Galaxies: Double galaxies with long filaments Ursa Major
Arp 297: NGC5752,53,54 & 55 Galaxies: Double galaxies with long filaments Bootes
Arp 298: NGC7469 & IC5283 Galaxies: Double galaxies Pegasus
Arp 299: NGC3690 & IC694 (PGC35345 & SDSS) Galaxies: Double galaxies Ursa Major
Arp 302: UGC9618 Galaxies: Double Galaxies Bootes
Arp 304: NGC1241 & 1242 Galaxies: Double Galaxies Eridanus
Arp 306: UGC1102 & 1105 Galaxies: Double Galaxies Pisces
Arp 307: NGC2873, 2873 and 2874 Galaxies: Double galaxies Leo
Arp 308: NGC545 & 547 Galaxies: Double galaxies Cetus
Arp 309: NGC942 & 943 Galaxies: Double Galaxies Cetus
Arp 310: IC1259 (and IC1258 & IC1260 as Arp311) Galaxies: Double galaxies Draco
Arp 311: IC1258 & IC1260 (and IC1259 as Arp310) Galaxies: Galaxy Group Draco
Arp 312: MCG8314, 8315, & 8316 Galaxies: Galaxy Group Hercules
Arp 313: NGC3991, 3994, 3995 & MAC1157+3215 Galaxies: Galaxy Group Ursa Major
Arp 314: MGC1-58-9 thru 11 Galaxies: Galaxy Group Aquarius
Arp 315: NGC2825, 2830, 2831 and 2832 Galaxies: Galaxy Group Lynx
Arp 316: NGC3185, 3187, 3190, 3193 Galaxies: Galaxy Group Leo
Arp 317: Leo Triplet (M65, M66, NGC3628) Galaxies: Galaxy Group Leo
Arp 317: Leo Triplet (NGC3628 detail) Galaxies: Galaxy Group Leo
Arp 318: NGC833, 835, 838, 839 Galaxies: Groups Cetus
Arp 319: NGC7317, 18A, 18B, 19, 20 (Stephan's Quintet) Galaxies: Galaxy Group Pegasus
Arp 320: NGC3745, 3746, 3748, 3750, 3751, 3753 & 3754 (Copeland's Septet) Galaxies: Galaxy Group Leo
Arp 321: MCG-1-25-9 (Hickson40) Galaxies: Galaxy Group Hydra
Arp 322: UGC6527 (Hickson56A,B,C,D,E) Galaxies: Galaxy Chain Ursa Major
Arp 323: NGC7783, 7783C, MCG06059, 06060 & APMUKS Galaxies: Galaxy Chain Pisces
Arp 325: MGC4-52-14 Galaxies: Galaxy Chain Aquarius
Arp 327: NGC1875A, B, C, D, PGC1306245 Galaxies: Galaxy Chain Orion
Arp 329: MCG+12-11-28A, B, C, D, E Galaxies: Galaxy Chain Draco
Arp 330: MCG+9-27-91, 92, 93, 94, 95, 96 Galaxies: Chains Draco
Arp 331: NGC383+ Galaxies: Galaxy Chain Pisces
Arp 332: IC1892, NGC1228, 1229, 1230, MCG4849 Galaxies: Galaxy Chain Eridanus
Arp 333: NGC1024, 1028 & 1029 Galaxies: Unique Aries
Arp 334: UGC8498 Galaxies: Unique Canes Venatici
Arp 336: NGC2685 Galaxies: Unique Ursa Major
Arp 337: NGC3034 (M82) Galaxies: Unique Ursa Major
Markarian 205: NGC4319 & Markarian205 redshifted bridge Draco

Arp Peculiar Galaxy Observations:



Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
1 NGC2857 (and NGC2854 & 2856, and PGC26694, PGC213599) Spiral:
Low Surface Brightness 		Ursa Major 03/19/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
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Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
2 UGC10310 Spiral:
Low Surface Brightness 		Hercules 06/03/2016 8" SCT f6.3 & Stellacam-3 120 sec
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Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
3 MCG15716 Spiral:
Low Surface Brightness 		Aquarius 10/06/2018 8" SCT f6.3 & Stellacam-3 120 sec
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Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
4 MCG-2-5-50 Spiral:
Low Surface Brightness 		Cetus 09/01/2016 8" SCT f6.3 & Stellacam-3 120 sec
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Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
6 NGC2537 & NGC2537A Spiral:
ow Surface Brightness 		Ursa Major 09/03/2024 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 24 min
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              "Bearpaw"       




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
7 MCG-3-23-9 Spiral:
Low Surface Brightnes 		Hydra 03/11/2024 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 sec for 16 min
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Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
8 NGC497 Spiral:
split arm 		Cetus 09/01/2016 8" SCT f6.3 & Stellacam-3 60 sec
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Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
9 NGC2523 Spiral:
Split Arm 		Camelopardalis 02/26/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 21 min
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Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
10 UGC1775 Spiral:
split arm 		Cetus 11/04/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 15 minutes
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Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
11 UGC717, 719, MCG244, PGC4118, 212672, 452829, 1453595 & 1458832 Spiral:
split arm 		Pisces 10/01/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 40 minutes
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Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
13 NGC7448 Spiral:
detached segments 		Pegasus 08/24/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
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Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
14 NGC7314 Spiral:
Detached Segments 		Piscis Austrinus 09/19/2014 8" SCT f10 & Stellacam-3 with .5x reducer 55 sec
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Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
15 NGC7393 Spiral:
Detached Segments 		Aquarius 10/06/2018 8" SCT f6.3 & Stellacam-3 120 sec
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Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
16 M66 Spiral:
Detached Segments 		Leo 03/13/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 seconds
for 30 minutes
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Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
18 NGC4088 & MGC92092 Spiral:
Detached Segments 		Ursa Major 05/30/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    


Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
19 NGC145 Spiral:
Three-Armed 		Cetus 09/02/2016 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
20 UGC3014 Spiral:
Three Armed 		Taurus 11/30/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
22 NGC4027 & 4027A Spiral:
One Armed 		Corvus 06/03/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
23 NGC4618 & 4625 Spiral:
One Armed 		Canes Venatici 02/26/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 sec for 20 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
24 NGC3445 & MCG101624 Spiral:
One Armed 		Ursa Major 02/26/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 sec for 20 min
      (return to index)
                    


Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
26 NGC5457 (M101) Spiral:
one heavy arm 		Ursa Major 05/31/2016 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
27 NGC3631 Spiral:
one heavy arm 		Ursa Major 05/30/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    


Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
28 NGC7678 Spiral:
one heavy arm 		Pegasus 08/24/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    


Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
29 NGC6946 Spiral:
one heavy arm 		Cepheus 08/25/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    


Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
30 NGC6365A & B Spiral:
one heavy arm 		Draco 08/06/2016 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
31 IC167, NGC691 & 694 Spiral:
Integral Sign 		Aries 10/01/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    


Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
32 UGC10770 Spiral:
Integral Sign 		Draco 08/06/2016 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    


Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
34 NGC4613, 4614, and 4615 Spiral:
Integral Sign 		Coma Berenices 06/14/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
35 UGC212, PGC1431, PGC1119510, PGC1121695 Spiral:
Integral Sign 		Pisces 11/04/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 15 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
36 UGC8548 and UGC8560 Spiral:
Integral Sign 		Canes Venatici 05/13/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
37 M77 Spiral:
Low SB companion on arm 		Cetus 09/20/2017 8" SCT f10 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
38 NGC6412 Spiral:
Low SB companion on arm 		Draco 08/25/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
39 NGC1347 Spiral:
Low SB companion on arm 		Eridanus 11/21/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
41 NGC1232 Spiral:
Low SB companion on arm 		Eridanus 11/21/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
42 NGC5829 & IC4526 Spiral:
Low SB companion on arm 		Bootes 08/25/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
43 IC607 & CGCG9433 Spiral:
Low SB companion on arm 		Leo 03/15/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 24 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
45 UGC9178, MCG92360 and VV2b Spiral:
Low SB companion on arm 		Bootes 05/31/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
46 UGC12665 & 12667 Spiral:
Low SB companion on arm 		Pegasus 09/202017 8" SCT f10 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
47 MGC33814 Spiral:
Low SB companion on arm 		Bootes 06/15/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
48, 88, 119 PGC4728, 4790, 1410939, 1412469, UGC849, MCG2421, CGCG43626 Spiral:
Low SB companion on arm
Spiral:
large High SB companion on arm,
Elliptical:
Close to and Perturbing Spirals 		Pisces 10/01/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
48 CGCG43626 Spiral:
Low SB companion on arm 		Pisces 10/01/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
50 IC1520 Spiral:
small High SB companion on arm 		Cetus 10/06/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
51 MGC-2-1-24 Spiral:
small High SB companion on arm 		Cetus 09/19/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
52 CGCG421-27 Spiral:
small High SB companion on arm 		Orion 11/21/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
54 PGC9107 & MGC177 Spiral:
small High SB companion on arm 		Cetus 09/20/2017 8" SCT f10 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
56 UGC1432 Spiral:
small High SB companion on arm 		Aries 09/22/2017 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
59 NGC341 Spiral:
small High SB companion on arm 		Cetus 09/02/2016 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
61 MCG01253, MCG01255, & UGC3105 Spiral:
small High SB companion on arm 		Eridanus 11/21/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
64 UGC9503A & 9503B Spiral:
small High SB companion on arm 		Bootes 06/15/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
65 NGC91 & 93 Spiral:
small High SB companion on arm 		Andromeda 09/19/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
66 UGC10770 Spiral:
small High SB companion on arm 		Draco 08/06/2016 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
67 UGC892, MCG0492, MCG0494 Spiral:
small High SB companion on arm 		Cetus 11/04/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 15 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
68 NGC7757 Spiral:
small High SB companion on arm 		Pisces 09/25/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
69 NGC5579 Spiral:
small High SB companion on arm 		Bootes 06/14/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
70 UGC934, PGC212740 Spiral:
Small High SB companion on arm 		Andromeda 10/01/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 10 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
71 NGC6045 Spiral:
Small High SB companion on arm 		Hercules 06/14/2018 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
72 NGC5994 & 5996 Spiral:
Small High SB companion on arm 		Serpens 08/25/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
73 IC1222 Spiral:
Small High SB companion on arm 		Hercules 06/03/2016 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
74 UGC1626 Spiral:
Small High SB companion on arm 		Andromeda 09/26/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
75 NGC702, PGC144368, PGC144370, PGC1064199, PGC1064575 Spiral:
small High SB companion on arm 		Cetus 11/04/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 15 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
76 M90 Spiral:
Small High SB companion on arm 		Virgo 06/14/2018 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
78 NGC770 & 772 Spiral:
Small High SB companion on arm 		Aries 09/22/2017 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
79 NGC5490C (and IC982 and 983) Spiral:
large high SB companion on arm 		Bootes 05/12/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
80 NGC2633 Spiral:
Large High SB companion on arm 		Camelopardalis 02/26/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 21 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
81 NGC6621 & 6622 Spiral:
large high SB companion on arm 		Draco 08/25/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
82 NGC2535 & 2536 Spiral:
large high SB companion on arm 		Cancer 11/30/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
83 NGC3799 and 3800 Spiral:
large high SB companion on arm 		Leo 05/13/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
84 NGC5394 & 5395 Spiral:
large High SB companion on arm 		Canes Venatici 06/14/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
85 NGC5194-5195 (M51) Spiral:
large High SB companion on arm 		Canes Venatici 05/31/2016 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
86 NGC7752 & 7753 Spiral:
large High SB companion on arm 		Pegasus 08/24/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
87 NGC3808A & 3808B Spiral:
large High SB companion on arm 		Leo 04/04/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
88 PGC4728 Spiral:
large High SB companion on arm 		Pisces 10/01/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
90 NGC5929 & 5930, and UGC9857 Spiral:
large High SB companion on arm 		Bootes 05/31/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 15 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
91 NGC5953 & 5954 Spiral:
Large High SB companion on arm 		Serpens 08/25/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
92 NGC7603 Spiral:
ellipitical companion on arm 		Pisces 11/11/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
93 NGC7284 & 7285 Spiral:
Elliptical Companion on Arm 		Piscis Austrinus 09/19/2014 8" SCT f10 & Stellacam-3 with .5x reducer 55 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
94 NGC3226 & 3227 Spiral:
Elliptical Companion on Arm 		Leo 03/15/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
95 IC4461 & 4462 & MGC53476 Spiral:
elliptical companion on arm 		Bootes 06/15/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
98 UGC1095 & MCG5466 Spiral:
elliptical companion on arm 		Triangulum 09/22/2017 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
99 NGC7547, 49, 50 Spiral:
elliptical companion on arm 		Pegasus 08/24/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
100 IC18 & IC19 (PGC963136) Spiral:
Elliptical companion on arm 		Cetus 09/06/2021 14" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
101 UGC10164 & 10165 Spiral:
Elliptical companion on arm 		Serpens 08/25/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
102 UGC10814 Elliptical:
Connected to Spirals 		Hercules 06/03/2016 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
103 MCG8313 and PGC59062 (Zwickys Triplet) Elliptical
Connected to Spirals 		Hercules 06/11/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
104 NGC5216 & 5218 (Keenan's System) Elliptical:
Connected to Spirals 		Ursa Major 05/31/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 15 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
108 MCG4817, 4818, PGC818145, 818640 Elliptical:
Connected to Spirals 		Eridanus 11/23/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 108 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
109 MCG+12-15-17, MCG+12-15-18, MCG+12-15-20, IC1146, PGC2730634 Elliptical:
Repelling Spiral Arms 		Draco 12/14/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 12 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
110 MCG35810, 35811 & APMUKS Elliptical:
Repelling Spiral Arms 		Pisces 10/06/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
111 NGC5421 & MCG63146 Elliptical:
Repelling Spiral Arms 		Ursa Major 02/26/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 sec for 20 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
112 NGC7805 & 7806 Elliptical:
Repelling Spiral Arms 		Pegasus 09/19/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
113 NGC67, 67A, 68, 69, 70, 71, 72, 72A, & 74 Elliptical:
Close to and Perturbing Spirals 		Andromeda 09/19/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
116 M60 & NGC4647 Elliptical:
Close to and Perturbing Spirals 		Virgo 06/14/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
117 IC982 and 983 (and NGC5490C) Elliptical:
Close to and Perturbing Spirals 		Bootes 05/12/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
118 NGC1143 & 1144 Elliptical:
Close to and Perturbing Spirals 		Cetus 09/20/2017 8" SCT f10 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
119 UGC849, MCG2421 Elliptical:
Close to and Perturbing Spirals 		Pisces 10/01/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
120 NGC4435 & 4438 Elliptical:
Close to and Perturbing Spirals 		Virgo 06/14/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
121 MCG1351, 1352 & 1354 Elliptical:
Close to and Perturbing Spirals 		Cetus 09/06/2021 14" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
122 NGC6040A & 6040B Elliptical:
Close to and Perturbing Spirals 		Hercules 06/14/2018 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
123 NGC1888 & 1889 Elliptical:
Close to and Perturbing Spirals 		Lepus 11/21/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
124 NGC6361 Elliptical:
Close to and Perturbing Spirals 		Draco 08/06/2016 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    


Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
125 UGC10491 Elliptical: Close to and Perturbing Spirals Hercules 06/06/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 20 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
126 UGC1449 (MCG069) Elliptical: Close to and Perturbing Spirals Pisces 09/06/2021 14" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
127 NGC191 & IC1563 Elliptical:
Close to and Perturbing Spirals 		Cetus 09/02/2016 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
128 UGC827, PGC200189 Elliptical:
Close to and Perturbing Spirals 		Pisces 10/01/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 10 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
130 IC5378 Elliptical:
Close to and Perturbing Spirals 		Pegasus 09/20/2017 8" SCT f10 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
131 MCG3825, 3826 Elliptical:
Close to and Perturbing Spirals 		Eridanus 11/30/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
133 NGC541
(NGC535, 543, 545, 547, 548, PGC5358, 5289, 5306, 5307, 5313, 5314) 		Elliptical:
with Nearby Fragments 		Cetus 09/06/2021 14" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
134 M49 & NGC4467 Elliptical:
with Nearby Fragments 		Virgo 06/15/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
135 NGC1023 Elliptical:
with Nearby Fragments 		Perseus 09/26/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
136 NGC5820 & 5821, & UGC9632, PGC53553, 140436 Elliptical:
with Nearby Fragments 		Bootes 05/31/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 15 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
140 NGC274 & 275 Elliptical:
Material emanating from elliptical 		Cetus 09/02/2016 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
143 NGC2444 & 2445 Elliptical:
Material emanating from elliptical 		Lynx 11/30/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
144 NGC7828 & 7829 Elliptical:
Material emanating from elliptical 		Cetus 09/19/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
145 UGC1840 Elliptical:
Material emanating from elliptical 		Andromeda 09/22/2017 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
146 PGC509 & 510 Galaxies:
Associated Rings 		Cetus 10/06/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
147 IC298 & 298A, & UGCA57 Galaxies:
Associated Rings 		Cetus 12/02/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
150 NGC7609, PGC71077, MCG15946 & 15948 Galaxies:
With Jets 		Pegasus 10/06/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
151 MCG91973 Galaxies:
With Jets 		Ursa Major 03/19/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
152 M87 Galaxies:
with Jets 		Virgo 06/11/2018 8" SCT f6.3 & Stellacam-3 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
153 NGC5128
"Centaurus A" 		Galaxies:
Distrubed with Interior Absorption 		Centaurus 05/18/2017 8" SCT f6.3 & Stellacam-3 45 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
155 NGC3656 Galaxies:
Distrubed with Interior Absorption 		Ursa Major 02/26/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 sec for 20 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
157 NGC520 Galaxies:
Distrubed with Interior Absorption 		Pisces 09/02/2016 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
158 NGC523 Galaxies:
Distrubed with Interior Absorption 		Andromeda 09/22/2017 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
160 NGC4194 Galaxies:
Distrubed with Interior Absorption 		Ursa Major 03/19/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
164 NGC455 (PGC4559, 4583, 1279188 & 212696) Galaxies:
Diffuse Filaments 		Pisces 09/06/2021 14" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
165 NGC2418 Galaxies:
Diffuse Filaments 		Gemini 12/14/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
166 NGC750 & 751 Galaxies:
Diffuse Filaments 		Triangulum 09/26/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
168 M32 Galaxies:
Diffuse counter-tails 		Andromeda 09/20/2017 8" SCT f10 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
169 NGC7236 & 7237 Galaxies:
Diffuse counter-tails 		Pegasus 08/24/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
170 NGC7578A, B & C Galaxies:
Diffuse counter-tails 		Pegasus 09/19/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
179 NPM1G Galaxies:
Narrow Filaments 		Eridanus 12/03/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
180 MCG1132, PGC1052322, 1053126, 1054318 Galaxies:
Narrow Filaments 		Eridanus 11/22/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
182 NGC7674, 7675, PGC71507, MCG15981 Galaxies:
Narrow Filaments 		Pegasus 10/06/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
183 UGC8560 and UGC8548 Galaxies:
Narrow Filaments 		Canes Venatici 05/13/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
184 NGC1961 Galaxies:
Narrow Filaments 		Camelopardalis 08/24/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
185 NGC6217 Galaxies:
Narrow Filaments 		Ursa Minor 08/25/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
186 NGC1614, PGC1003489, 1001062 Galaxies:
Narrow Filaments 		Eridanus 11/22/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
187 MCG21340A, PGC980468 Galaxies:
Narrow Filaments 		Eridanus 11/23/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 187 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
188 UGC10214 Galaxies:
Narrow Filaments 		Draco 08/06/2016 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
190 UGC2320 Galaxies:
Narrow Filaments 		Aries 09/22/2017 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
200 NGC1134 Spiral:
Material Ejected from Nucleus 		Aries 09/26/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
201 UGC224, MCG0219, PGC1139985 Spiral:
Material Ejected from Nucleus 		Pisces 11/04/2021 8" SCT f6.3 & ZWO ASI294MC& L-Pro filter 60 seconds
for 15 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
206 NGC3432 Galaxies:
Material ejected from Nucleus 		Leo Minor 04/04/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 seconds
for 30 minutes
      (return to index)
       (UGC5983)              


Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
208 MCG83109, 831110, & 831111 Galaxies: Material ejected from Nucleus Hercules 06/06/2021 8" SCT f6.3 & ZWO ASI294MC L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
210 NGC1569 Galaxies:
Irregularities, Absorption, and Resolution 		Camelopardalis 08/24/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
212 NGC7625 Galaxies:
Irregularities, Absorption, and Resolution 		Pegasus 08/24/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
213 IC356 Galaxies:
Irregularities, Absorption, and Resolution 		Camelopardalis 08/24/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
214 NGC3718 Galaxies:
Irregularities, Absorption, and Resolution 		Ursa Major 05/30/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
216 NGC7679 & 7682 Galaxies:
Adjacent Loops 		Pisces 09/25/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
219 UGC2812 & 2814 Galaxies:
Adjacent Loops 		Eridanus 12/03/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
222 NGC7727 Spiral:
Amorphous Spiral Arms 		Pisces 09/25/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
223 NGC7585 Spiral:
Amorphous Spiral Arms 		Pisces 09/25/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
224 NGC3921 (and NGC3916, and PGC37013, 2489542, 2490363 & 2491113) Galaxies:
Appearance of Fission 		Ursa Major 03/19/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
226 NGC7252 Galaxies:
Amorphous Spiral arms 		Piscis Austrinus 09/19/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
227 NGC470 & 474 Galaxies:
Concentric Ring 		Cetus 09/02/2016 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
228 IC62, PGC6634, 6644, 6654, MCG2539 Galaxies:
Concentric Ring 		Pisces 11/22/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
229 NGC494, 499, 504, 507, 508, 510, IC1687, PGC197581, 2029622 Galaxies:
Concentric Ring 		Pisces 11/22/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
230 IC51 Galaxies: Concentric Ring Cetus 09/06/2021 14" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
231 IC1575 Galaxies:
Concentric Ring 		Cetus 12/03/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
234 NGC3738 Galaxies:
Appearance of Fission 		Ursa Major 03/19/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
235 NGC14 Galaxies:
Appearance of Fission 		Pegasus 09/192014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
236 IC1662, 1663A & 1663B Galaxies:
Appearence of Fission 		Cetus 12/03/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
237 UGC5044, MCG22412, PCG26830 Galaxies:
Appearence of Fission 		Leo 05/15/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
238 UGC8335 & MGC101957 Galaxies:
Appearance of Fission 		Ursa Major 05/29/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
239 NGC5278 & 5279 , & UGC8671, MCG9224, 2514229 Galaxies:
Appearance of Fission 		Ursa Major 05/31/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 15 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
240 NGC5257 & 5258 Galaxies:
Appearance of Fission 		Virgo 05/29/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
241 UGC9425 Galaxies:
Appearance of Fission 		Bootes 08/25/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
242 NGC4676A & 4676B Galaxies:
Appearance of Fission 		Coma Berenices 06/14/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
244 NGC4038 & 4039 Galaxies:
Appearance of Fission 		Corvus 06/15/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
244 NGC4038 & 4039 (Antenna Galaxy) Galaxies:
Appearance of Fission 		Corvus 06/03/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
246 NGC7837 & 7838 Galaxies:
Appearance of Fission 		Pisces 09/26/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
247 IC2338, IC2339, IC2341, PGC142820 Galaxies:
Appearence of Fission 		Cancer 12/14/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
249 UGC12891 Galaxies:
Appearance of Fission 		Pegasus 09/20/2017 8" SCT f10 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
250 IRAS-F07327+3529 Galaxies:
Appearence of Fission 		Lynx 12/14/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
251 MCG2337 & MAC0053-3349 Galaxies:
Appearence of Fission 		Cetus 12/03/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
254 NGC5917, MCG1393 Galaxies:
Appearance of Fission 		Libra 06/15/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
256 MCG2151, 2152 & APMUKS Galaxies:
Appearance of Fission 		Cetus 10/06/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
257 UGC4638 Galaxies:
Irregular Clumps 		Hydra 03/11/2024 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 sec for 16 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
258 UGC2140 Galaxies:
Irregular Clumps 		Aries 09/22/2017 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
259 NGC1741A, B, IC339, PGC16571, MRK1089 Galaxies:
Narrow Filaments 		Eridanus 11/22/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
262 UGC12856 Galaxies:
Irregular Clumps 		Pegasus 09/20/2017 8" SCT f10 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
263 NGC3239, CGCG9440,9442,9443, MCG32726, and UGC5639 Galaxies:
Irregular Clumps 		Leo 03/15/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
269 NGC4485 & 4490 Galaxies:
With Connected Arms 		Canes Venatici 04/13/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
270 NGC3395 & 3396 Galaxies:
With Connected Arms 		Leo Minor 04/04/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
271 NGC5426 & 5427 Galaxies:
With Connected Arms 		Virgo 06/15/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
272 NGC6050 Galaxies:
With Connected Arms 		Hercules 06/14/2018 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
273 UGC1810-1813 Galaxies:
With Connected Arms 		Andromeda 09/22/2017 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
275 NGC2881 Galaxies:
Interacting double galaxies 		Hydra 03/11/2024 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 sec for 16 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
276 NGC935 & IC1801 Galaxies:
Interacting double galaxies 		Aries 09/22/2017 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
278 NGC7253A & 7253B Galaxies:
Interacting double galaxies 		Pegasus 08/24/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
279 NGC1253 & 1253A Galaxies:
Interacting double galaxies 		Eridanus 11/30/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
281 NGC4627 & 4631 Galaxies:
Double galaxies with infall and attraction 		Canes Venatici 06/14/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
282 NGC169 & IC1559 Galaxies:
Double galaxies with infall and attraction 		Andromeda 08/24/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
284 NGC7714 & 7715, & QSO2333+019 Galaxies:
Double galaxies with infall and attraction 		Pisces 12/03/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
285 NGC2854 & 2856 (and NGC2857, and PGC26694, PGC213599) Galaxies:
Double galaxies with infall and attraction 		Ursa Major 03/19/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
286 NGC5560,5566, 5569 Galaxies:
Double galaxies with infall and attraction 		Virgo 06115/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
288 NGC5221, 5222, PGC93122 & 1438924 Galaxies:
Double galaxies with wind effects 		Virgo 05/13/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
290 IC195 & 196 Galaxies:
Double galaxies with wind effects 		Aries 09/22/2017 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
293 NGC6285 & 6286 Galaxies:
Double galaxies with wind effects 		Draco 08/06/2016 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
294 NGC3786 & 3788 Galaxies:
Double galaxies with long filaments 		Ursa Major 04/04/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
295 MGC1-60-21 & 22 Galaxies:
Double galaxies with long filaments 		Aquarius 09/26/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
296 PGC35345 & SDSS
(NGC3690 & IC694) 		Galaxies:
Double galaxies with long filaments 		Ursa Major 04/13/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
297 NGC5752,53,54 & 55 Galaxies:
Double galaxies with long filaments 		Bootes 08/25/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
298 NGC7469 & IC5283 Galaxies:
Double galaxies 		Pegasus 09/26/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
299 NGC3690 & IC694
(PGC35345 & SDSS) 		Galaxies:
Double galaxies 		Ursa Major 04/13/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
302 UGC9618, & MCG43518, 43519, PGC1712643, 1713635, 1714140, 1714195 Galaxies:
Double Galaxies 		Bootes 05/29/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
304 NGC1241 & 1242 Galaxies:
Double Galaxies 		Eridanus 12/03/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
306 UGC1102 & 1105 Galaxies:
Double Galaxies 		Pisces 12/03/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
307 NGC2872, 2873 & 2874 Galaxies:
Double Galaxies 		Leo 05/12/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
308 NGC545 & 547
(NGC535, 541, 543, 545, 547, 548, PGC5358, 5289, 5306, 5307, 5313, 5314) 		Galaxies: Double galaxies Cetus 09/06/2021 14" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
309 NGC942 & 943, & PGC973981 Galaxies:
Double Galaxies 		Cetus 12/02/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    


Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
310 IC1259 (and IC1258 & IC1260 as Arp311) Galaxies: Double galaxies Draco 06/06/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 25 minutes
      (return to index)
                    


Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
311 IC1258 & IC1260 (and IC1259 as Arp310) Galaxies: Galaxy Group Draco 06/06/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 25 minutes
      (return to index)
                    


Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
312 MCG8314, 8315, & 8316 Galaxies: Galaxy Group Hercules 06/06/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
313 NGC3991, 3994, 3995 & MAC1157+3215 Galaxies:
Galaxy Group 		Ursa Major 05/13/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
314 MGC1-58-9 thru 11 Galaxies:
Galaxy Group 		Aquarius 09/26/2014 8" SCT f10 & Stellacam-3 with .5x reducer 50 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
315 NGC2825, 2830, 2831 and 2832 Galaxies:
Galaxy Group 		Lynx 05/12/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
316 NGC3185, 3187, 3190 & 3193 Galaxies:
Galaxy Group 		Leo 05/15/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
317 Leo Triplet (M65, M66, NGC3628) Galaxies:
Galaxy Group 		Leo 03/13/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
317 Leo Triplet (NGC3628 detail) Galaxies:
Galaxy Group 		Leo 03/13/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 120 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
318 NGC833, 835, 838, 839 Galaxies:
Groups 		Cetus 12/03/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
319 NGC7317, 18A, 18B, 19, 20 (Stephan's Quintet) Galaxies:
Galaxy Group 		Pegasus 08/24/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
320 NGC3745, 3746, 3748, 3750, 3751, 3753 & 3754 (Copeland's Septet) Galaxies:
Galaxy Group 		Leo 05/13/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
321 MCG-1-25-9, MCG-1-25-8, MCG-1-25-10, MCG-1-25-11, MCG-1-25-12 Galaxies:
Galaxy Group 		Hydra 12/11/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 15 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
322 UGC6527 (Hickson56A,B,C,D,E) Galaxies:
Galaxy Chain 		Ursa Major 05/30/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
323 NGC7783, 7783C, MCG06059, 06060 & APMUKS Galaxies:
Galaxy Chain 		Pisces 10/06/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
325 MGC4-52-14 Galaxies:
Galaxy Chain 		Aquarius 09/25/2014 8" SCT f10 & Stellacam-3 with .5x reducer 60 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
327 NGC1875A, B, C, D, PGC1306245 Galaxies:
Galaxy Chain 		Orion 11/23/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
329 MCG+12-11-28A, B, C, D, E Galaxies:
Galaxy Chain 		Draco 08/18/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
330 MCG+9-27-91, 92, 93, 94, 95, 96 Galaxies:
Chains 		Draco 09/02/2024 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 15 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
331 NGC373, 375, 379, 380, 382, 383, 384, 385, 386, 387, 388, UGC679, PCG197570, 1992625 Galaxies:
Galaxy Chain 		Pisces 11/22/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
332 IC1892, NGC1228, 1229, 1230, MCG4849, UGC679, PGC197570, 1992625 Galaxies:
Galaxy Chain 		Eridanus 11/22/2022 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 30 min
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
333 NGC1024, 1028 & 1029 Galaxies:
Unique 		Aries 09/22/2017 8" SCT f6.3 & Stellacam-3 180 sec
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
334 UGC8498 Galaxies:
Unique 		Canes Venatici 05/13/2021 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 60 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
336 NGC2685 Galaxies:
Unique 		Ursa Major 09/03/2024 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 sec for 24 min
      (return to index)
              "Helix"       




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
337 NGC3034 (M82) Galaxies:
Unique 		Ursa Major 06/15/2018 8" SCT f6.3 & Stellacam-3 120 sec
      (return to index)
                    




The following observations are of non-Arp galaxies, but show a "Arp-like" pecularity.




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
non-Arp NGC4319 & Markarian205 redshifted bridge Draco 11/11/2023 8" SCT f6.3 & ZWO ASI294MC & L-Pro filter 180 seconds
for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
non-Arp NGC5256 (Markarian266) interacting pair Ursa Major 05/29/2022 8" SCT f6.3 & ASI294MC 180 sec for 30 minutes
      (return to index)
                    




Arp Object NGC / IC    Peculiarity    Constellation Date Telescope & Camera Exposure
non-Arp Markarian273 & PGC48698, 48707, & 214144 tail Ursa Major 05/29/2022 8" SCT f6.3 & ASI294MC 180 sec for 30 minutes
      (return to index)
                    





Hope you enjoyed the visit. Come again soon!
Larry McHenry,   Pittsburgh, PA. USA

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