- Galaxies of the Arp Catalogue (Peg) -

And (4) Cep (3) CVn (5) Lep (1) Peg (12) Tri (1)
Ari (3) Cet (2) Dra (1) LMi (4) Per (1) UMa (19)
Boo (2) Cnc (1) Gem (1) Lyn (4) Psc (5) UMi (1)
Cam (3) Com (6) Leo (10) Ori (1) Ser (2) Vir (6)

Arp 13 (GLX)

../dss/dss2blue_230003.59_+155849.31_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC7448, UGC12294, Arp13, H2.251
Group: NGC7448 Group
Type: GLX
Constellation: Peg
Coordinates: 23h00m03.59s / +15°58'49.31"
Brightness / Size: 11m4 / 2.7x1.2'
Robert Zebahl
8" f/6, 80x, Bortle 4
Fairly easy, slightly elongated.

EASY
René Merting
100mm f/6.4, 64x, SQM-L 21.5
bei 64x blitzt die Galaxie immer wieder westlich von einem schwachen Stern auf - sie kann mitunter auch gehalten werden und wirkt leicht länglich - bei 107x wirkt die Galaxie etwas flächiger, kann aber nicht mehr so gut gehalten werden wie bei 64x
MODERATE

Arp 28 (GLX)

../dss/dss1_232827.89_+222516.26_5_web.jpg
Image source: DSS I - 5×5'
Name: NGC7678, UGC12614, Arp28, H2.226
Type: GLX
Constellation: Peg
Coordinates: 23h28m27.89s / +22°25'16.26"
Brightness / Size: 11m8 / 2.5x1.7'
Robert Zebahl
8" f/6, 80x, Bortle 4-, SQM-L 20.9
Oval, slightly condensed. Nicely embedded in a star triangle.
MODERATE

Arp 46 (GLX)

../dss/dss1_233338.63_+300220.42_5_web.jpg
Image source: DSS I - 5×5'
Name: UGC12665, Arp46
Type: GLX
Constellation: Peg
Coordinates: 23h33m38.63s / +30°02'20.42"
Brightness / Size: b15m1 / 1.3x0.9'
Robert Zebahl
8" f/6, 171x, Bortle 4-, SQM-L 20.9
In few moments I glimpsed something elongated, but not seen for sure.
FAILED

Arp 86 (GLXGRP)

../dss/dss2blue_234704.00_+292830.00_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: Arp86
Type: GLXGRP
Constellation: Peg
Coordinates: 23h47m04.00s / +29°28'30.00"

Group Members:
NGC7752 (UGC12779) b14m3 0.9x0.5'
NGC7753 (UGC12780, H2.213) 12m2 2.9x1.9' (50°)
Robert Zebahl
8" f/6, 100x, Bortle 4
I have only tried the brighter NGC7753: Fairly faint, diffuse, slightly oval, slight brightening toward the middle.
MODERATE

Arp 99 (GLXGRP)

../dss/dss2blue_231512.00_+190000.00_12_web.jpg
Image source: DSS II (blue) - 12×12'
Name: Arp99
Type: GLXGRP
Constellation: Peg
Coordinates: 23h15m12.00s / +19°00'00.00"

Group Members:
NGC7547 (UGC12453) 13m7 1.1x0.5' (95°)
NGC7549 (UGC12457) 13m0 2.8x0.7' (8°)
NGC7550 (UGC12456, H3.181) 12m2 1.4x1.2' (150°)
Robert Zebahl
8" f/6, 96x, Bortle 4-, NELM 5m7+, SQM-L 20.8
Conditions in the target region: SQM-L 20.6

NGC7547: At 96x quite compact, at 133x evenly bright. Very faint. I guess that I only saw the bright core area.

NGC7549: At 96x roundish, at 133x roundish to slightly oval, diffuse, rather faint.

NGC7550: Brightest member and barely visible with direct vision, evident with averted vision, roundish, center somewhat brighter, otherwise rather evenly bright. At 133x brighter core, which appeared very compact.
MODERATE

Arp 112 (GLXGRP)

../dss/dss2blue_000130.00_+312630.00_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: Arp112
Type: GLXGRP
Constellation: Peg
Coordinates: 00h01m30.00s / +31°26'30.00"

Group Members:
NGC7805 (UGC12908, H3.855) 13m3 1.2x0.9' (30°)
NGC7806 (UGC12911, H3.856) 13m5 1.1x0.8' (5°)
MCG+5-1-26 (PGC111) b16m5 0.6x0.2'
Robert Zebahl
8" f/6, 210x, Bortle 4
The brighter galaxies (NGC7805 & NGC7806) were well separable. The faint MCG+05-01-026 is not visible with 8 inch aperture. NGC7806 is the middle one of the three galaxies.

NGC7805: Evenly bright, roundish. In comparison to NGC7806 slightly larger and brighter. Well visible with averted vision.

NGC7806: Roundish, fairly faint, rather at the limit of perception.
DIFFICULT

Arp 150 (GLXGRP)

../dss/dss2blue_231930.00_+093000.00_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: HCG95, Arp150
Type: GLXGRP
Constellation: Peg
Coordinates: 23h19m30.00s / +09°30'00.00"

Group Members:
NGC7609 14m2 1.3x1.1' (60°)
MCG+1-59-46 (PGC71074) b16m1 0.8x0.2'
MCG+1-59-48 (PGC71080) 15m2 0.8x0.3'
PGC71077 16m1 0.7x0.4'
Robert Zebahl
8" f/6, 171x, Bortle 4-
This observation was a while back and I could only saw NGC7609 as very faint, roundish brightening, but at the limit of perception with averted vision. But don't expect too much from this Hickson/Arp group with 8 inch aperture.
DIFFICULT

Arp 170 (GLXGRP)

../dss/dss2blue_231714.00_+184230.00_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: Arp170
Type: GLXGRP
Constellation: Peg
Coordinates: 23h17m14.00s / +18°42'30.00"

Group Members:
NGC7578A (UGC12477) 13m9 0.7x0.6' (90°)
NGC7578B (UGC12478) 14m0 1.7x1.2' (25°)
NGC7578C (PGC70936) b16m5 0.3x0.2'
PGC70937 b18m1 0.6x0.2'
Arp170 is part of Hickson 94. The brighter galaxy in the upper left corner on the DSS image is PGC70943 and not part of Arp170, but Hickson 94.

Robert Zebahl
8" f/6, 171x, Bortle 4-, NELM 5m7+, SQM-L 20.8
Conditions in the target region: SQM-L 20.6
The level of difficulty is only related to the two brightest group members (NGC7578A/B). The other members might be too faint for 8 inch aperture. At 66x I could easily see with averted vision around NGC7578A/B a faint, evenly bright glow, which appeared slightly oval at higher magnification. At 171x I could fairly well see within this glow the two rather compact cores of NGC7578 A/B, which were clearly separated from each other. The core of NGC7578 B (northeastern of NGC7578 A) appeared a bit brighter and larger. I didn't looked for the other members of course.
MODERATE

Arp 212 (GLX)

../dss/dss2blue_232030.13_+171332.16_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC7625, UGC12529, Arp212, H2.250
Type: GLX
Constellation: Peg
Coordinates: 23h20m30.13s / +17°13'32.16"
Brightness / Size: 12m1 / 1.6x1.4'
Robert Zebahl
8" f/6, 171x, Bortle 4
Round with also roundish, brighter core.

EASY
René Merting
100mm f/6.4, 64x, SQM-L 21.5
bei 64x indirekt als zarter diffuser Nebelhauch erkennbar
MODERATE

Arp 235 (GLX)

../dss/dss2blue_000846.42_+154855.90_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC14, UGC75, Arp235, H2.591
Type: GLX
Constellation: Peg
Coordinates: 00h08m46.42s / +15°48'55.90"
Brightness / Size: 12m1 / 2.8x2.1'
Robert Zebahl
8" f/6, 100x, Bortle 4
Round to slightly oval nebula, brightening toward the middle.
MODERATE

Arp 298 (GLXGRP)

../dss/dss1_230316.50_+085256.00_8_web.jpg
Image source: DSS I - 8×8'
Name: Arp298
Type: GLXGRP
Constellation: Peg
Coordinates: 23h03m16.50s / +08°52'56.00"

Group Members:
NGC7469 (UGC12332) 12m3 1.4x1.0' (125°)
IC5283 b15m2 1.1x0.6' (120°)
René Merting
12.5" f/4.5, 206x, SQM-L 21.5
NGC 7469: bei 72x ist die Galaxie kompakt erkennbar mit stellarem Kern - sie läuft diffus aus - bei 111x wird sie deutlicher - sehr heller auffälliger Kern - die Helligkeit nimmt nach außen schnell ab - bei 160x ist das Zentrum nicht mehr stellar, aber auch noch nicht kompakt und am Ostrand ist ein schwacher Stern auszumachen - bei 206x bleibt NGC 7469 diffus mit einem kompakten Zentrum

IC 5283: bei 111x blitzt die Galaxie immer wieder als kleiner matter Schimmer auf, der aber nicht gehalten werden kann - bei 160x ist der Schimmer mitunter länger haltbar und wirkt leicht länglich OW-elongiert
EASY

Arp 319 (GLXGRP)

../dss/dss2blue_223557.50_+335736.00_7_web.jpg
Image source: DSS II (blue) - 7×7'
Name: HCG92, Arp319, Stephan's Quintet
Type: GLXGRP
Constellation: Peg
Coordinates: 22h35m57.50s / +33°57'36.00"

Group Members:
NGC7317 13m6 0.7x0.6' (150°)
NGC7318A (UGC12099) 13m4 0.9x0.9' (90°)
NGC7318B (UGC12100) 13m2 1.9x1.2' (120°)
NGC7319 (UGC12102) 13m5 1.7x1.3' (148°)
NGC7320 (UGC12101) 12m6 2.2x1.1' (132°)
Robert Zebahl
4.5" f/8, 60x, Bortle 3, NELM 6m3+, SQM-L 21.3
A rather difficult group for 4.5 inch. Transparent sky is very important. At 60x I saw a brightening, that includes NGC7318A/B and NGC7320. Separating them was difficult. Only at 100x I could separate both for sure and they appeared as oval nebulas.

MODERATE
152mm f/5.9, 129x, Bortle 4, SQM-L 21.0
Only the two brightest members were visible. NGC 7320 appeared oval, faint, almost equally bright, NGC 7318A/B also oval, moderately condensed.

MODERATE
8" f/6, 150x, Bortle 4, SQM-L 21.0
Wonderful, but more fainter group near NGC7331. NGC7318A/B appeared at 80x as oval, evenly bright nebula with averted vision and is brightest member. At 214x I could separate the cores of both galaxies with averted vision. NGC7320 was also fairly easily seen at 80x with averted vision, oval, relatively faint. NGC7317 is located nearby a 13.4m star and appeared at 150x as a very compact brightening. NGC7319 is the faintest member in this group and was visible at 150x as an extremely faint glow.

MODERATE
René Merting
12.5" f/4.5, 206x, SQM-L 21.5
NGC 7317: bei 111x als stellare Aufhellung eindeutig sichtbar

NGC 7318 & 7318A: bei 72x beide zusammen als ein Nebelfleck erkennbar - bei 206x dann ist die Trennung sichtbar und die Kerne beider Galaxien blitzen stellar auf

NGC 7319: bei 72x als nebliges Flecken erkennbar - bei 111x die am zweitbesten sichtbare Galaxie, leicht länglich

NGC 7320: bei 72x als schwacher Schimmer auszumachen - bei 111x ist sie die leichteste Galaxie dieser Gruppe mit einer leichten Kondensation südöstlich
MODERATE