William Herschel discovered NGC 4534 = H II-410 = h1336 on 1 May 1785 (sweep 405) and noted "F, cL, r." His position is just off the north side of UGC 7723. JH made two observations, reporting on sweep 331, "vF; L; R; vglbM; 45"."

400/500mm - 17.5" fairly faint, moderately large, round, 2.0' diameter, low almost even surface brightness, very small region of central brightening. A mag 15 star is 30" SW of the halo and 1.5' from center.

Notes by Steve Gottlieb