Guillaume Bigourdan discovered NGC 7577 = B. 97 on 7 Oct 1885. His position in the Comptes Rendus list is just 1' north of PGC 70947, an extremely faint galaxy that is not listed in CGCG or MCG. A mag 15 star just 23" northeast certainly contributed to the appearance of nebulosity. This object is probably Bigourdan's faintest discovery. See Corwin's notes.

400/500mm - 17.5" (11/18/95): extremely faint and small, round, 10" diameter. Forms a close pair with a mag 15 star off the ENE edge 23" from center that confuses the observation. Cannot hold steadily with averted at 220x but observation certain. Faintest in trio and located 8.8' due west of NGC 7583 and 9.5' SW of NGC 7604.

Notes by Steve Gottlieb