NGC 4492 is a spiral galaxy located about 90 million light-years away in the constellation Virgo. NGC 4492 was discovered by astronomer William Herschel on December 28, 1785. It was rediscovered by astronomer Arnold Schwassmann on January 23, 1900, and was listed as IC 3438. NGC 4492 lies in the direction of the Virgo Cluster. However, it is not considered to be a member of that cluster.

400/500mm - 17.5" (4/18/87): fairly faint, small, round, bright core. A mag 12.5 star is very close NE 45" from center and a brighter mag 11.5 star is 1.8' SE. Located 19' ENE of M49.