Francis Leavenworth discovered NGC 1630 = LM 2-398 in 1886 with the 26" refractor at Leander McCormick Observatory. His position is 42 tsec east of ESO 551-019 = PGC 15659 (typical error).
400/500mm - 17.5" (12/26/00): very faint, small, round, 25" diameter, low even surface brightness.
Notes by Steve Gottlieb