John Herschel discovered NGC 3845 = h963 on 17 Mar 1831 and recorded "vF; pS; the last of 4 [with NGC 3841, 3837 and 3842]. There are however 3 or 4 more nebulae in this neighbourhood." His position is 0.8' southwest of CGCG 097-100 = PGC 36470. d'Arrest measured an accurate position (observed on 2 nights).

300/350mm - 13.1" (2/25/84): very faint, very small.

400/500mm - 17.5" (2/20/88): very faint, very small, slightly elongated, bright core. Located 1.6' NNE of NGC 3841 in the core of AGC 1367.

Notes by Steve Gottlieb