William Herschel discovered NGC 4335 = H II-806 = h1217 on 17 Apr 1789 (sweep 923) and simply noted "pB". His re-reduced position is 2.5' northwest of UGC 7455. JH made two observations, recording on sweep 345 "pB; S; E; gbM; good obs of place."

400/500mm - 17.5" (5/13/88): first of four and brightest in the group. Moderately bright, fairly small, slightly elongated, bright core.

Notes by Steve Gottlieb