NGC 634 (also IRAS 01354+3507, MCG 6-4-48, UGC 1164 and PGC 6059) is a magnitude +13.9 spiral galaxy located 226 million light-years away in the constellation Triangulum.
The galaxy was discovered by French astronomer Edouard Stephan using a 80.01 cm (31.5 inch) reflector at the Marseille Observatory on the 26th October 1876.