John Herschel discovered NGC 5158 = h1607 on 7 May 1826 and noted "vF; R." His position is accurate.
400/500mm - 17.5" (5/30/92): fairly faint, small, round, almost even surface brightness, very small slightly brighter core. Located 11' SW of mag 8.9 SAO 100581.
Notes by Steve Gottlieb