William Herschel discovered NGC 5145 = H II-667 = h1602 on 9 Apr 1787 (sweep 725) and recorded "pB, vS, bM, lE." JH made a single observation and his position is on the south side of the halo.

400/500mm - 18" (5/30/03): fairly faint, fairly small, elongated 3:2 E-W, 1.0'x0.7', broad concentration to a brighter core.

Notes by Steve Gottlieb