John Herschel discovered NGC 3483 = h3307 on 10 May 1834 and recorded "pF, S, R, bM, 15". Among stars." His position matches ESO 438-001 = PGC 33060.
400/500mm - 18" (3/17/07): fairly bright, moderately large, slightly elongated, 1.2'x1.0', fairly high surface brightness. Well concentrated with a small bright core that brightens to the center. Forms the southern vertex of a small triangle with mag 9 HD 95183 1.8' NE and a mag 11.5-12 star 1.3' NNW.
18" (4/29/06): fairly faint, fairly small, elongated 4:3 ~E-W, 0.8'x0.6', irregular halo. Increases to a small bright core and stellar nucleus. Located 1.8' SW of mag 9 HD 95183. Completing a triangle with the galaxy is a mag 12 star 1.3' N.
Notes by Steve Gottlieb