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Last update: 2017-11-29

VdS FG

- Galaxies of the Arp Catalogue (Peg) -

And (4) Cep (3) CVn (5) Lep (1) Peg (11) Tri (1)
Ari (3) Cet (1) Dra (1) LMi (3) Per (1) UMa (16)
Boo (1) Cnc (1) Gem (1) Lyn (2) Psc (5) UMi (1)
Cam (3) Com (3) Leo (10) Ori (1) Ser (2) Vir (6)

Arp 13 (GLX)

DSS
© 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: v11.4 mag / 2.7x1.2'
8" f/6, 80x, Bortle 4
Fairly easy, slightly elongated.
EASY

Arp 28 (GLX)

DSS
© DSS I - 5×5'
Name: NGC7678, UGC12614, Arp28, H2.226
Type: GLX
Constellation: Peg
Coordinates: 23h28m27.89s / +22°25'16.26"
Brightness / Size: v11.8 mag / 2.5x1.7'
8" f/6, 80x, Bortle 4-, SQM-L 20.9
Oval, slightly condensed. Nicely embedded in a star triangle.
MODERATE

Arp 46 (GLX)

DSS
© DSS I - 5×5'
Name: UGC12665, Arp46
Type: GLX
Constellation: Peg
Coordinates: 23h33m38.63s / +30°02'20.42"
Brightness / Size: b15.1 mag / 1.3x0.9'
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
© DSS II (blue) - 5×5'
Name: Arp86
Type: GLXGRP
Constellation: Peg
Coordinates: 23h47m04.00s / +29°28'30.00"

Group Members:
NGC7752 (UGC12779) b14.3 mag 0.9x0.5'
NGC7753 (UGC12780, H2.213) v12.2 mag 2.9x1.9' (50°)
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
© DSS II (blue) - 12×12'
Name: Arp99
Type: GLXGRP
Constellation: Peg
Coordinates: 23h15m12.00s / +19°00'00.00"

Group Members:
NGC7547 (UGC12453) v13.7 mag 1.1x0.5' (95°)
NGC7549 (UGC12457) v13.0 mag 2.8x0.7' (8°)
NGC7550 (UGC12456, H3.181) v12.2 mag 1.4x1.2' (150°)
8" f/6, 96x, Bortle 4-, NELM 5.7+, SQM-L 20.8
SQM-L in the target region: 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
© DSS II (blue) - 5×5'
Name: Arp112
Type: GLXGRP
Constellation: Peg
Coordinates: 00h01m30.00s / +31°26'30.00"

Group Members:
MCG+5-1-26 (PGC111) b16.5 mag 0.6x0.2'
NGC7805 (UGC12908, H3.855) v13.3 mag 1.2x0.9' (30°)
NGC7806 (UGC12911, H3.856) v13.5 mag 1.1x0.8' (5°)
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
© DSS II (blue) - 5×5'
Name: HCG95, Arp150
Type: GLXGRP
Constellation: Peg
Coordinates: 23h19m30.00s / +09°30'00.00"

Group Members:
MCG+1-59-46 (PGC71074) b16.1 mag 0.8x0.2'
MCG+1-59-48 (PGC71080) v15.2 mag 0.8x0.3'
NGC7609 v14.2 mag 1.3x1.1' (60°)
PGC71077 v16.1 mag 0.7x0.4'
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
© DSS II (blue) - 5×5'
Name: Arp170
Type: GLXGRP
Constellation: Peg
Coordinates: 23h17m14.00s / +18°42'30.00"

Group Members:
NGC7578A (UGC12477) v13.9 mag 0.7x0.6' (90°)
NGC7578B (UGC12478) v14.0 mag 1.7x1.2' (25°)
NGC7578C (PGC70936) b16.5 mag 0.3x0.2'
PGC70937 b18.1 mag 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.

8" f/6, 171x, Bortle 4-, NELM 5.7+, SQM-L 20.8
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
© DSS II (blue) - 5×5'
Name: NGC7625, UGC12529, Arp212, H2.250
Type: GLX
Constellation: Peg
Coordinates: 23h20m30.13s / +17°13'32.16"
Brightness / Size: v12.1 mag / 1.6x1.4'
8" f/6, 171x, Bortle 4
Round with also roundish, brighter core.
EASY

Arp 235 (GLX)

DSS
© DSS II (blue) - 5×5'
Name: NGC14, UGC75, Arp235, H2.591
Type: GLX
Constellation: Peg
Coordinates: 00h08m46.42s / +15°48'55.90"
Brightness / Size: v12.1 mag / 2.8x2.1'
8" f/6, 100x, Bortle 4
Round to slightly oval nebula, brightening toward the middle.
MODERATE

Arp 319 (GLXGRP)

DSS
© 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 v13.6 mag 0.7x0.6' (150°)
NGC7318A (UGC12099) v13.4 mag 0.9x0.9' (90°)
NGC7318B (UGC12100) v13.2 mag 1.9x1.2' (120°)
NGC7319 (UGC12102) v13.5 mag 1.7x1.3' (148°)
NGC7320 (UGC12101) v12.6 mag 2.2x1.1' (132°)
4.5" f/8, 60x, Bortle 3, NELM 6.3+, 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
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 218x 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