John Herschel discovered NGC 1510 = h2606 on 4 Dec 1836 and recorded "F; R; vgpmbM, 80" dia. Not resolved. A companion to Dunlop 466 [NGC 1512]." His position is accurate.

300/350mm - 13.1" (2/18/04 - Costa Rica): faint, very small, round, only 20" diameter. Forms an equilateral triangle with two mag 13.5 stars ~1.8' S and 1.7' WSW. Located 5' SW of NGC 1512.

13.1" (11/29/86): not seen although far south from northern California. Forms a pair with brighter NGC 1512.

Notes by Steve Gottlieb