Type

Supermassive

Location

in the constellation Coma Berenices

Distance

325 million light-years (100 megaparsecs)

Mass

1 billion to 9 billion times the mass of the Sun

Size

Diameter at least equal to the diameter of Neptune's orbit around the Sun

Discovery Methods

• Measuring the motions of gas
• Measuring the motions of stars

An image of several galaxies in Coma Berenices. NGC 4061 is the bright blob on the right at the center of the image. [STScI/Digitized Sky Survey]

This document was last modified: January 23, 2006.