Albert Marth discovered NGC 5952 = m 288 on 25 Mar 1865 and noted "eF, vS, alm stell." His position matches CGCG 050-030 = PGC 55496. Harold Corwin notes that Bigourdan's IC 1126 applies to a nearby star, and not NGC 5952.
400/500mm - 17.5" (7/3/97): extremely faint, very small, round, 15" diameter, low even surface brightness. Requires averted but observation definite. NGC 5955 lies 7' NE.
17.5" (7/7/94): very marginal sighting and not confidently seen.
Notes by Steve Gottlieb