Lewis Swift discovered IC 1816 = Sw. XI-41 on 12 Oct 1896 and noted "vF; S; R; wide D * near p[receding]." His position is 5' too far south and the wide double is ~5' NW.

600/800mm - 24" (11/7/18): at 260x; nearly moderately bright (affected by low elevation), round, 35" diameter, bright core with a small brighter nucleus. Two mag 10.2 and 11.3 stars (separation ~1.5') lies ~5' NW. Located 15' SSW of mag 6.3 HD 15889. MCG -06-06-014, located 20' SE, appeared fairly faint, small, round, 15" (core region only viewed).

Notes by Steve Gottlieb