William Herschel discovered NGC 4203 = H I-175 = h1140 on 20 Mar 1787 (sweep 722) and recorded "vB, S, R, mbM." His position is on the southwest side of the galaxy. On 6 Apr 1855, R.J. Mitchell, observing with LdR's 72", logged "very like a distant Cl, vB Nucl with neby gradually fading off. Star involved preceding Nucl and other stellar points suspected in the outlying faint neby."

200/250mm - 8" fairly bright, small, small bright nucleus. A mag 5 star (SAO 62928) is 20' SE at the edge of the field.

400/500mm - 17.5" bright, moderately large, round, sharp concentration with a prominent very bright core (LINER nucleus) a much fainter halo, possible stellar nucleus. Located 3.7' SSE of mag 7.8 SAO 62912

Notes by Steve Gottlieb