William Herschel discovered NGC 5482 = H III-59 on 19 Mar 1784 (sweep 179) and noted "eF, S, suspected with 157 and verified with 240." His position is 8 sec of RA east of UGC 9038 and matches in declination.

400/500mm - 17.5" (6/8/02): fairly faint, fairly small, slightly elongated E-W, 0.8'x0.6', moderate concentration with a small brighter core ~15" diameter. A couple of mag 14.5 stars [28" separation] lie 2.5' SSE. Follows a mag 12 star by 3.8'. Located ~1.5° ESE of the large NGC 5416 cluster.

Notes by Steve Gottlieb