- Galaxies of the Arp Catalogue (Ser) -

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 72 (GLXGRP)

../dss/dss2blue_154656.00_+175300.00_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: Arp72
Type: GLXGRP
Constellation: Ser
Coordinates: 15h46m56.00s / +17°53'00.00"

Group Members:
NGC5994 14.8 mag 0.4x0.2'
NGC5996 (UGC10033, H2.97) 12.8 mag 1.7x0.9' (20°)
The much more fainter NGC5994 is located southwestern of NGC5996.

8" f/6, 200x, Bortle 4, NELM 6.1, SQM-L 21.0
I only focused on the brighter NGC5996, which was well seen with averted vision as slightly oval nebula, getting somewhat brighter toward the middle.
MODERATE

Arp 91 (GLXGRP)

../dss/dss2blue_153434.00_+151200.00_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: Arp91
Type: GLXGRP
Constellation: Ser
Coordinates: 15h34m34.00s / +15°12'00.00"

Group Members:
NGC5953 (UGC9903, H2.178) 12.0 mag 1.6x1.3' (50°)
NGC5954 (UGC9904, H2.179) 12.2 mag 1.3x0.6' (5°)
8" f/6, 200x, Bortle 4
NGC5953: Slightly oval with brighter core. Oval shape comes from nearby NGC5954, which appeared much fainter.

NGC5954: Fairly small & compact. Difficult to separate from nearby NGC5993. Barely seen with averted vision.

A more detailed observation of this galaxy pair will follow.
MODERATE