Albert Marth discovered NGC 6635 = m 381 on 9 Jul 1863 and noted "vF, S, R." His RA is accurate but his dec is 2' too far south.

400/500mm - 17.5" (7/1/89): faint, very small, slightly elongated, small bright core, stellar nucleus. A mag 12 star is 1.0' S. Located 7.7' NNW of mag 8.6 SAO 103741 in a rich star field. Planetary nebula M3-27 is 20' S.

Notes by Steve Gottlieb