Heinrich d'Arrest discovered NGC 4483 on 19 Mar 1865 with the 11-inch refractor at Copenhagen. He measured the position on 2 nights and noted the nearby mag 10 star preceded by 26 seconds of time.
400/500mm - 17.5" (4/18/87): moderately bright, small, oval SW-NE, small bright core, stellar nucleus.
Notes by Steve Gottlieb