John Herschel discovered NGC 2151 = h3001 on 31 Jan 1835 and logged "F; R; bM; 45"." His position is accurate. The Hodge-Wright Atlas completely misplaces NGC 2151 onto chart 66, near 05 57 50 -63 53 38 (2000), about 20' SW of NGC 2162. NGC 2151 is labeled SL 786.

600/800mm - 30" (10/13/15 - OzSky): at 394x; moderately bright, small, roundish, 35" diameter. A mag 15.2 star is resolved on the southwest edge and a mag 14 star is at the northeast end. The bright nucleus is nearly stellar, so on first glance it looked like three collinear stars. A 13" pair of similar mag 12.6/12.8 stars lies 4.5' ENE and a mag 10.6 star is 3.7' SSW. Located 12.6' NW of NGC 2157.

Notes by Steve Gottlieb