Ernst Hartwig discovered NGC 5405 on 3 Mar 1883 with a 16.3-cm refractor while searching for comet d'Arrest. His discovery position in AN 2507 is accurate. This was his first of 7 NGC galaxies (5 were new discoveries) he discovered. Hartwig is most famous for discovering the supernova in M31 (S And) on 20 Aug 1885.

400/500mm - 17.5" (6/8/02): faint, small, round, 25" diameter, low even surface brightness. Located 8' SW of a mag 10 star and about 1.5° SSW of the NGC 5416 cluster. NGC 5418 lies 17' E.

Notes by Steve Gottlieb