William Herschel discovered NGC 5416 = H III-56 on 19 Mar 1784 (sweep 179) and noted "eF, vS, E, r." CH's reduction is 17 sec of RA west of UGC 8944. Wilhelm Tempel measured an accurate position on 25 Apr 1883 (list VIII in AN #2527) and discovered 6 members of the NGC 5416 group (NGCs 5409, 5423, 5431, 5434, 5436, 5437)
400/500mm - 17.5" (6/4/94): moderately bright, elongated 3:2 WNW-ESE, 1.4'x0.9', broad concentration. A mag 13 star is 2.9' S and a mag 11.5 star 4.7' NNE. Brightest in a cluster although just slightly more prominent than NGC 5409 6.9' WNW.
Notes by Steve Gottlieb