William Herschel discovered NGC 2513 = H III-512 = h483 on 3 Mar 1786 (sweep 534) and recorded "vF, S, R, mbM, 240 showed it very well." His position is accurate. John Herschel called the nebula "pB; R; psbM." on 18 Jan 1828 (sweep 120). The two fainter companions (NGC 2510 and 2511) were discovered at Birr Castle.

400/500mm - 17.5" (2/13/88): moderately bright, fairly small, irregularly round, well concentrated to a very bright core, small faint halo. Brightest in a group including NGC 2510 5.6' NW, NGC 2511 3' SW, CGCG 59-19 and CGCG 59-26.

600/800mm - 24" (3/22/14): bright, fairly large, sharply concentrated with a very bright 20" core. The halo extends ~1.25'x0.9' N-S and has a fairly low surface brightness. Brightest in a group with NGC 2511 2.7' SW, NGC 2510 5.6' NW, LEDA 1364011 4.7' SW, CGCG 59-27 6' NE.

Notes by Steve Gottlieb