Francis Leavenworth discovered NGC 1206 = LM 2-355 in 1886 with the 26" refractor at Leander McCormick Observatory and logged "mag 15.6, 0.2' dia, vlE 180?." His position matches PGC 11644, though Bigourdan was unable to recover this galaxy. The RNGC misidentifies a plate flaw as NGC 1206!

400/500mm - 18" (1/1/08): extremely faint, very small, round, 15" diameter. Visible ~80% of the time using averted vision as a very low surface brightness knot with no structure. Located 6.5' N of a mag 10.5 star. The edge-on streak identified as NGC 1206 in the RNGC is actually a plate flaw.

Notes by Steve Gottlieb