UGC 2604 UGC 2380
Per
☀14.6mag
Ø 54'' / 42''
Drawing Uwe Glahn

400/500mm - 17.5" (1/9/99): this member of AGC 407 appears as a faint, diffuse, elongated glow with an irregular surface brightness, ~1' in length. Described in the UGC as a compact group of 7 galaxies. The combined glow of these galaxies is both larger and more prominent than UGC 2493 5.7' SSE which is the brightest individual galaxy in AGC 407.

600/800mm - 24" (2/8/18): the main glow of Zwicky's Nonet appeared faint, small, slightly elongated, ~20" diameter. I couldn't confidently resolve the two components G1 (B) and G3 (D) within this glow. However, ~20" E is G7 (G), which was occasionally visible (V = 15.6, B = 16.7) and separated from the main glow. It was difficult to determine if it appeared nonstellar, but it was certainly 6" or less in size.

The designations are from the 2017 paper "Zwicky's Nonet: a compact merging ensemble of nine galaxies and 4C 35.06, a peculiar radio galaxy with dancing radio jets" and the 1982 paper by Schneider and Gunnl: "V Zw 311 - The once and future cD", respectively.