DeLisle Stewart discovered IC 2523 = DS 323, along with IC 2522, on a plate taken in Apr 1900 at Harvard's Arequipa Station. He noted "vF, vS, cE at 20°, susp."
400/500mm - 17.5" (3/28/87): fairly faint, small, slightly elongated. One or two faint stars are off the east end. Forms a pair with IC 2522 4.5' N.
Notes by Steve Gottlieb