Lewis Swift discovered NGC 6422 = Sw. II-57, along with NGC 6423, on 1 Aug 1883 and recorded "eF; pS; R; nearly between a F and a B *." His position is 16 seconds west of CGCG 321-025 = PGC 60553, the brightest of four galaxies in a 3' circle. The "B *" in the description probably refers to the mag 8.9 star 3' east. Bigourdan measured an accurate position on 6 Sep 1888 (repeated in the IC 2 Notes). MCG doesn't label +11-21-015 as NGC 6422. See notes for NGC 6419.

400/500mm - 17.5" (6/11/88): faint, very small, round, bright core. In a compact trio with similar NGC 6420 1.3' WSW and MCG +11-21-014 1' NW. The MCG was the faintest of the trio and appeared extremely faint, very small, round, even surface brightness. Located in a group with NGC 6419 6.3' NNW and CGCG 321-023 = PGC 60529 7' WNW. The CGCG appeared very faint, extremely small, round. A mag 15 star is off the south edge.

600/800mm - 24" (6/16/20): at 260x; between fairly faint and moderately bright, slightly elongated ~N-S, ~50"x40", contains a bright core and a low surface brightness halo. A mag 8.9 star (SAO 17574) is 3' E. Brightest in a tight trio with NGC 6420 1.4' WSW and PGC 60553 1.0' NW. PGC 60553 appeared faint, round, 20" diameter, fairly low nearly even surface brightness, faint stellar nucleus.

LEDA 2709666, located 4.6' small, appeared faint, elongated 3:2 E-W, 25"x18", low even surface brightness. A mag 14.6 star is 0.9' ESE.

CGCG 321-28, located 10' ESE, appeared faint, very elongated 3:1 NW-SE, low even surface brightness, 30"x10".

CGCG 321-21, located 12' WSW, appeared faint, slightly elongated N-S, 20"x15" (core region).

Notes by Steve Gottlieb