Francis Leavenworth discovered NGC 166 = LM 1-285 in 1886 with the 26" refractor of the Leander McCormick Observatory. His rough position is just under 1 min of RA preceding MCG -02-02-063. A mag 12 star is 5' NW, matching Leavenworth's description. Herbert Howe measured an accurate position in 1899-00 using the 20" refractor at Chamberlin Observatory (repeated in the IC 2 notes).

400/500mm - 17.5" (12/3/88): very faint, very small, oval NW-SE.

Notes by Steve Gottlieb