Stephane Javelle found IC 573 = J. 1-171 on 20 Apr 1892. His position is a good match with the double system MCG -02-25-026 = PGC 28513. This galaxy discovered by Leavenworth on 6 May 1886, but his rough RA for LM 1-159 (later NGC 3058) was two minutes too large. Leavenworth noted it was "double or bi-nuclear", so this identification is secure. Howe later measured an accurate position for NGC 3058, matching NGC 3058 with IC 573. Because of the unambiguous position for IC 573, MCG only uses the IC designation for MCG -02-25-002

400/500mm - 17.5" (4/15/93): faint, fairly small, round, low even surface brightness. A mag 13 star is 1.0' W. A wide mag 12/13 pair at 45" separation lies 2' SSW and a mag 12/13.5 pair at 30" separation E-W lies 3.5' W.

600/800mm - 28" (4/12/18): at 366x; moderately bright, fairly small, elongated ~3:2 SW-NE, ~40"x25", very small slightly brighter nucleus. A mag 13.6 star is 1.1' W. A very close, faint pair (~6" separation) is 1.1' SSE.

NGC 3058 is interacting with NGC 3058 NED1 = LEDA 3442467, only 18" NW of center. The companion was very faint, extremely small, ~10" diameter, virtually attached to NGC 3058.

Notes by Steve Gottlieb