Lewis Swift discovered NGC 3522 = Sw. III-59 on 26 Apr 1883 and described "pF; vS; lE; in starless field." His position is 18 sec of RA west of UGC 6159. This was one of his first two discoveries (along with NGC 3588 on the same night), while still adjusting and testing his new 16-inch Clark refractor at Warner Observatory. Kobold measured an accurate position in 1901 at the Strasbourg Observatory.

400/500mm - 18" (5/31/03): fairly faint, fairly small, elongated 5:3 WNW-ESE, 0.7'x0.4'. Fairly sharply concentrated with a brighter 15" round core.

Notes by Steve Gottlieb