Williamina Fleming discovered IC 2448 = Fleming 80 on a Harvard objective prism plate taken in 1898 at the Arequipa station.

600/800mm - 24" (4/4/08 - Magellan Observatory, Australia): this extremely bright, 10.5-magnitude compact planetary is located 34' SW of mag 1.7 Beta Carinae (Miaplacidus). At 350x it appeared ~10" diameter with a very high surface brightness disc and a faint, thin outer envelope increasing the diameter a couple of arc seconds.

Notes by Steve Gottlieb