Albert Marth discovered NGC 3357 = m 202 = T V-5 on 5 Apr 1864 and noted "F, S, mbM." His position is 1' north of UGC 5206. Heinrich d'Arrest independently discovered this galaxy on 22 Feb 1865, noted the mag 13-14 star 10 seconds of time due west and measured a very accurate position. Wilhelm Tempel made another independent discovery on 18 Nov 1881 while looking for Denning's Comet.

UGC incorrectly gives the RA as 9h instead of 10h, although identifies this UGC 5206 as NGC 3357. In the UGC addenda, NGC 3357 is listed again as UGC 5854A, as the corrected position falls between UGC 5854 and 5855.

400/500mm - 17.5" (3/22/96): fairly faint, fairly small, round, 1.0' diameter, broad concentration to an ill-defined brighter 15" core. A mag 12 star is 2.3' W of center. A wide pair of evenly matched mag 9.5 stars lies 8.5' NE.

Notes by Steve Gottlieb