Albert Marth discovered NGC 7620 = m 573 = T I-50 on 5 Sep 1864 and noted "F, S, vlE." His position is accurate. Wilhelm Tempel independently discovered this galaxy in 1876 and reported it as new in his first discovery paper. Engelhardt also measured an accurate micrometric position.

400/500mm - 17.5" (9/23/89): faint, fairly small, almost round, brighter center surrounded by a small halo.

Notes by Steve Gottlieb