Royal H. Frost discovered IC 3442 = F. 936 on a plate taken on 10 May 1904 at Harvard's Arequipa station using the 24" f/5.6 Bruce photographic refractor. He noted "F, R, lbM, 0.2' dia." It was also discovered on plates taken with the Crossley reflector in 1898-1900, but not reported until 1908 (Publications of Lick Observatory, Vol VIII) as #457 of 744 new nebulae. Keeler wasn't mentioned in the IC II as the publication date was too late.
400/500mm - 18" (5/12/07): this Virgo cluster dwarf was surprisingly faint and appeared extremely faint, small, round, 20" diameter, low surface brightness. Located 20' SW of M88.
Notes by Steve Gottlieb