Stephane Javelle discovered IC 154 = J. 2-535, along with IC 156, on 15 Dec 1892 and recorded "F, vS, lbM, * 11.5 sp."

400/500mm - 17.5" (12/18/89): very faint, fairly small, appears as a very thin sliver WSW-ENE. A mag 13.5 star is at the preceding end 40" WSW of center. Member of the NGC 665 group and forms a pair with IC 156 6' SSE. NGC 665 lies 14' SSW.

Notes by Steve Gottlieb