Lewis Swift discovered NGC 7818 = Sw. VI-100 on 23 Oct 1886 and recorded "eeeF; pS; ee diff.; follows 5048 [NGC 7816] 22 seconds and is 5' south." His position is 5 seconds of RA west and 2' north of UGC 21, but the reference to[NGC 7816 clinches this identification.

400/500mm - 17.5" (9/15/90): extremely faint, small, round, very low even surface brightness. Forms a pair with NGC 7816 7.7' NW.

Notes by Steve Gottlieb