John Herschel discovered NGC 5489 = h3559 on 1 Jul 1834 and recorded "F; S; R; psbM; 10"." His position (also measured the next night) is accurate.

400/500mm - 22" (6/28/06 - Hawaii): fairly faint, fairly small, elongated 3:2 NW-SE, 0.8'x0.5', fairly sharply concentrated with a very small brighter core. A nice string of three mag 12-13 stars at 18" and 23" separation lies 9' SW. Located 18' WSW of mag 7.5 HD 69489.

Notes by Steve Gottlieb