Lewis Swift discovered NGC 6232 = Sw. I-48, along with NGC 6236, on 28 Jun 1884 and recorded "pF; pL; lE. 1st of 4 [with NGC 6236, 6237, 6245]." His position RA was 15 seconds too small, but at this declination the separation is just 1' west of UGC 10537. Hermann Kobold measured an accurate micrometric position in 1892 with the 18" refractor at Strasbourg. See notes on NGC 6237, which may be a duplicate number.

MCG mislabels NGC 6232 as NGC 6237. The RNGC has the correct identification.

400/500mm - 17.5" (7/9/88): fairly faint, very small, round, small bright core, faint stellar nucleus. A mag 15 star is at the west edge. Located 10.9' SW of NGC 6236 in a group.

Notes by Steve Gottlieb