Hickson 10 is one of the brighter Hickson groups. Hickson 10A (NGC 536) is moderately bright, slightly elongated WSW-ENE. A mag 13 star is involved at the N edge. Hickson 10B (NGC 529)
located 8.5' W is also moderately bright, fairly small, with a bright core. Hickson 10C (NGC 531) is faint, fairly small, oval SW-NE, fairly small. A mag 12 star is just off the NE end 1.0'
from center. Forms a 3' pair with Hickson 10D (N542) which is also faint, diffuse, slightly elongated. - Steve Gottlieb