John Herschel discovered NGC 1558 = h2632 on 14 Dec 1835 and recorded "pF, pmE, gpmbM, 25" long, 15" broad". There is nothing at his position, but exactly 1 min of RA east is ESO 250-017 = PGC 14906.

600/800mm - 24" (11/18/12 - Magellan Observatory, Australia): fairly bright, fairly large, elongated 3:1 WSW-ENE, 1.7'x0.6'. Contains a large, brighter elongated core that gradually brightens somewhat to the center. A mag 13.2 star lies 1.3' SSE of center. Located 10' E of mag 7.7 HD 27805. ESO 250-018, with a similar redshift, lies 8' ESE. Viewed with 4.5 day moon up.

Notes by Steve Gottlieb