NGC 5640 is a spiral galaxy approximately 660 million light-years away from Earth in the constellation of Camelopardalis.[1] It was discovered by British astronomer William Herschel on December 20, 1797.[3]
Supernova SN 1996ah was discovered in NGC 5640 on June 6, 1996 by J. Mueller, who was using the 1.2-m Oschin Schmidt telescope in the course of the second Palomar Sky Survey.[4]
SN 1996ah had magnitude about 18 and was located southwest of the centre of NGC 5640 (coordinates: RA 14h20m39.020s, DEC +80d07m21.00s, J2000.0).[4][1] It was classified as type Ia supernova.[1]
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