Wilhelm Tempel discovered NGC 4830 = T IV-9 = T V-23 on 26 May 1880. His micrometric position is an exact match with ESO 575-037 = PGC 44313.

400/500mm - 18" (5/15/04): moderately bright, moderately large, elongated 4:3 NNW-SSE, 1.0'x0.7'. Well-concentrated with a small, high surface brightness core which increases to a well-defined, bright stellar nucleus. Forms the NW vertex of a trapezoid with three mag 8-10 stars! The closest is a mag 10.5 star 2' S with mag 8.3 HD 112528 4' SE.

Notes by Steve Gottlieb