NGC 3535 (also IRAS 11059+0505, MCG 1-29-4, UGC 6189 and PGC 33760) is a magnitude +13.5 spiral galaxy located 320 million light-years away in the constellation Leo.
The galaxy was discovered by German-British astronomer William Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflector at Datchet, Berkshire, on the 18th April 1784.
Right Ascension 11h 08m 33.9s, Declination +04° 49' 57"