- Galaxies of the Arp Catalogue (Lyn) -

And (4) Cep (3) CVn (5) Lep (1) Peg (11) Tri (1)
Ari (3) Cet (1) Dra (1) LMi (4) Per (1) UMa (17)
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 6 (GLX)

../dss/dss2blue_081314.64_+455923.25_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2537, UGC4274, Arp6, H4.55, Bear's Paw Galaxy
Group: NGC2841 Group
Type: GLX
Constellation: Lyn
Coordinates: 08h13m14.64s / +45°59'23.25"
Brightness / Size: 11.7 mag / 1.7x1.5'
120mm f/5, 75x, Bortle 4, SQM-L 21.0
Somewhat conspicuous with averted vision, round, evenly bright with sharply defined shape to some extent.

MODERATE
8" f/6, 150x, Bortle 6+, NELM 5.2, SQM-L 19.6
Round, evenly bright, well defined shape. Barely seen with direct vision.

EASY
8" f/6, 150x, Bortle 4
Round, evenly bright, barely seen with direct vision. At 37x very small, round. Differences in brightness not noticed.
EASY

Arp 315 (GLXGRP)

../dss/dss2blue_091945.00_+334442.00_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: Arp315
Type: GLXGRP
Constellation: Lyn
Coordinates: 09h19m45.00s / +33°44'42.00"

Group Members:
NGC2830 (UGC4941) 14.3 mag 1.2x0.3' (110°)
NGC2831 13.4 mag 0.5x0.5'
NGC2832 (UGC4942, H1.113) 11.9 mag 3.0x2.0'
8" f/6, 100x, Bortle 5
Easy is only the bright NGC2832: barely seen with direct vision, roundish, diffuse, getting brighter toward the middle. The other two galaxies weren't visible even at 150x.
EASY