William Herschel discovered NGC 4572 = H III-939 = h1364 on 10 Dec 1797 (sweep 1066) and noted "eF, S." Caroline's reduction is 3' south of UGC 7775, the same offset for nearby NGC 4589, so the identification is certain. John Herschel made the single observation, "eF, only to be seen with very long attention." IC 802 (found by Bigourdan) matches in RA but is 3' further north and probably refers to a star. See Corwin's identification notes.

400/500mm - 18" (5/8/04): faint, moderately large, appears as a very low surface brightness glow oriented NNW-SSE, ~1.2'x0.8', with just a weak concentration. Located 7.5' NW of brighter NGC 4589. This galaxy has an unusual "integral sign" shape on the DSS.

Notes by Steve Gottlieb