DeLisle Stewart discovered IC 1662 = D.S. 149 on a photographic plate taken on 27 Nov 1900 at Harvard's station in Arequipa, Peru. He noted "vF, eS, neb or vS group of stars." His position is accurate.

600/800mm - 30" (11/6/10 - Coonabarabran, 264x): fairly faint, small, slightly elongated, 36"x24", brighter core. There was no resolution except for a single star on the west side. IC 1662 is located 3.7' WNW of a mag 10.9 star and 11' SW of the bright emission nebula NGC 456, which is the first of three striking clusters and nebulae with 460 and 465. Lindsay 93, a fainter cluster, lies 1.5' SE.

Notes by Steve Gottlieb