William Herschel discovered NGC 670 = H II-611 = h149 on 26 Oct 1786 (sweep 626) and noted "F, S, lE". John Herschel logged on 15 Sep 1828 (sweep 177), "not vF; S; E nearly in Meridian [N-S]; 15" C; 10" br." R.J. Mitchell, using the 72" on 18 Sep 1857, recorded "S, pretty much E np sf, bM, is about 2' preceding a double star."

300/350mm - 13.1" (11/5/83): fairly faint, small, compact, elongated 2:1 N-S, bright core. Located 28' NNW of NGC 672.

Notes by Steve Gottlieb