I agree, this is a nice little triplet. I first observed them in 1997 with a 17.5-inch and then again in 2015 with my 24-inch (notes below)


IC 2375: first in a striking trio of IC galaxies. At 322x; relatively bright, very elongated 7:2 E-W, ~0.8'x0.25'. IC 2377 lies 1.6' E and IC 2379 is 2.1' ENE.

IC 2377: slightly fainter than IC 2379, slightly elongated, ~0.4'x0.3', even surface brightness. Faintest (lowest overall surface brightness) in a close trio with IC 2375 1.6' W and IC 2379 0.9' NNE. A mag 11 star is 1.6' ESE.

IC 2379: fairly faint, oval 4:3 NW-SE, ~0.45'x0.3', small bright core. Second brightest in the triplet. A mag 11 star lies 1.7' SE and a slightly fainter star is 1.9' NE.

MCG -02-22-011: fairly faint, elongated 5:3 N-S, ~25"x15", small bright core. A mag 12.3 star is off the SE side [30" from center]. I picked up this galaxy while viewing the IC 2375/77/79 triplet, located 14' NNE.

LDC (Low-Density Catalog) and HDC (High-Density Catalog) are based on higher density regions in the 2MASS catalog. See formula 1 in this paper and I'm sure it will all be explained. Hahaha.