John Herschel discovered NGC 1533 = h2622 on 5 Dec 1834 and recorded "vB, pL, R, smbM to a stellar nucleus. Has two stars 10th mag N.f." His position and description matches ESO 157-003 = PGC 14582.

According to Glen Cozens the original discovery was made by James Dunlop. He reported D 320 as "a small faint nebula, about 12" diameter, with three very small stars north of it." and claims 3 observations. There is nothing at his position, but NGC 1533 is 1? to the north.

300/350mm - 13.1" (2/19/04 - Costa Rica): fairly bright, moderately large, 2.0' diameter, round, contains a small bright core. Collinear with two 11.5 magnitude stars 1' and 2' NE of center. Member of the Dorado group with NGC 1536 24' SSE, NGC 1546 40' E and the NGC 1549/1553 pair less than a degree NE.

Notes by Steve Gottlieb