The nearby Andromeda Galaxy, 2.5 million light-years away, contains a 1.4 +0.65 −0.45 × 10 (140 million) M ☉ central black hole, significantly larger than the Milky Way's. The largest supermassive black hole in the Milky Way's vicinity appears to be that of Messier 87 (i.e., M87*), at a mass of (6.5 ± 0.7) × 10 (c. 6.5 billion) M ☉ at a distance of 48.92 million light-years. The supergiant elliptical galaxy NGC 4889, at a distance of 336 million light-years away in the Coma Berenices constellation, contains a black hole measured to be 2.1 +3.5 −1.3 × 10 (21 billion) M ☉.