NGC 3902

NGC 3902 is an intermediate spiral galaxy in the constellation Leo. It was discovered on April 6th, 1785 by William Herschel and observed on February 19th, 1827 by John Herschel. It is estimated to be 180 to 185 million light-years away, and its redshift-independent distance estimates to about 185 to 240 million light-years. It is around 75 thousand light-years in diameter.
NGC 3902 is one galaxy within the NGC 3902 group (or LGG 254), a group of galaxies in Leo; the other galaxies of which are NGC 3920, NGC 3944, UGC 6806 and UGC 6807.