Stephane Javelle discovered IC 1687 = J. 3-870, along with IC 1685, on 1 Dec 1899 and noted "faint, round, 15", central core mag 14." He worked his way through the NGC 507 cluster very thoroughly over several nights, picking up a number of faint galaxies.

400/500mm - 17.5" (10/4/97): extremely faint and small, round, 10" diameter. Required averted vision to view. Located just 1.6' SE of mag 7.5 SAO 54647 within the NGC 507 Group. A mag 14 star lies 30" preceding.

600/800mm - 24" (10/4/13): fairly faint, very small, round, 12" diameter. Located 1.6' SE of mag 7.6 HD 8347 and 4.5' WNW of NGC 507, the brightest member of the large group. A mag 13.8 star is just 30" W.

Notes by Steve Gottlieb