John Herschel discovered NGC 5126 = h3500 on 6 May 1834 and noted "vF; vS." The previous night he discovered brighter NGC 5124. This galaxy has two very faint, close companions making this group a quadruple.

400/500mm - 18" (6/4/05): extremely faint, small, elongated 5:2 SW-NE, 0.8'x0.3'. Low surface brightness and requires averted to confirm. Located 1.6' SSE of brighter NGC 5124. A group of four brighter stars lie southeast including mag 8.4 HD 116623 4.9' SE.

Notes by Steve Gottlieb