Édouard Stephan discovered NGC 6662 = St XIII-90 on 7 Aug 1883. His micrometric position is accurate. Neither UGC nor CGCG label this galaxy as NGC 6662, despite the good position. MCG, RNGC and RC3 have the correct designation. Malcolm Thomson noted this omission in his unpublished "Catalogue Corrections".

300/350mm - 13.1" (9/3/86): faint, small, very elongated SSW-NNE, brighter core. A mag 11 star [4" pair] is 2.2' NE. Not identified as NGC 6662 in the UGC or CGCG.

Notes by Steve Gottlieb