John Herschel discovered NGC 3694 = h899 on 11 Mar 1831 and logged "Not vF; R; sbM almost to a star; 20"." His position matches UGC 6480.
400/500mm - 17.5" (4/18/98): fairly faint, small, irregularly round, 30"-40" diameter, bright core, stellar nucleus at moments. Brightest in a pretty similar trio of NGC 3695 11' NNE and NGC 3700 11' NE (both with uncertain NGC identifications).
Notes by Steve Gottlieb