NGC 6103 (also IRAS 16138+3205, MCG 5-38-49, UGC 10302 and PGC 57648) is a magnitude +13.9 spiral galaxy located 433 million light-years away in the constellation Corona Borealis.
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 27th May 1791.
Right Ascension 16h 15m 44.5s, Declination +31° 57' 50"
