Type

Supermassive

Location

In the constellation Coma Berenices

Distance

335 million light-years (103 megaparsecs)

Mass

9.8 billion to 27 billion times the mass of the Sun

Size

Diameter roughly 6 to 17 times the size of the orbit of Neptune

Discovery Methods

• Measuring the motions of stars

NGC 4889, the bright blob at left center, is one of the largest galaxies in the Coma Cluster. [S.Van Dyk/2MASS]

This document was last modified: December 23, 2011.