Albert Marth discovered NGC 3592 = m 216 on 4 Mar 1865 and noted "eF, S, pmE, pos 60°." Marth's position matches UGC 6267 = M+03-29-011, although the PA is 120°.

400/500mm - 17.5" (4/9/99): surprisingly faint for listed magnitude, required averted and appeared as a 15" "knot" just 45" following a mag 14.5 star. Elongation not seen so I only viewed the brighter inner core of this edge-on system. Located 11' W of NGC 3598. Member of the LGG 237 group, which includes NGC 3681, 3684 and 3686.

Notes by Steve Gottlieb