John Herschel discovered NGC 5312 = h1676 on 29 Apr 1827 and simply noted "vF". The mean of his two positions is within 30" of CGCG 190-061 = PGC 49075. JH assumed this nebula was his father's III-422, but that designation applies to NGC 5321 (see notes of that number). Because of this error, WH is mistakenly credited with the discovery of NGC 5312 in the GC and NGC, instead of JH.

400/500mm - 17.5" (5/22/93): faint, small, slightly elongated, very small bright core, stellar nucleus. A mag 15-15.5 star is 0.9' S. First in the NGC 5318 group with NGC 5318 10' NE and NGC 5321 11' E.

Notes by Steve Gottlieb