NGC 3660 (also IRAS 11210-0823, MCG -1-29-16, UGCA 234 and PGC 34980) is a magnitude +12.2 barred spiral galaxy located 169 million light-years away in the constellation Crater.
The galaxy was discovered by German-British astronomer William Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflector at Windsor Road, Slough, on the 22nd February 1787.
Right Ascension 11h 23m 32.2s, Declination Dec Dec -08° 39' 31"