Type

Intermediate mass

Location

In the constellation Ursa Major

Finder Chart

Distance

11 million light-years (3.4 megaparsecs)

Mass

Approximately 1,000 times the mass of the Sun

Size

Diameter equal to the size of Mars

Discovery Methods

• Detection of an accretion disk

1

X-ray views from Chandra X-Ray Observatory show a flare-up from the possible black hole. The black hole is just to the right of the green cross, which marks the galaxy's center. It is much brighter in the second view than the first. [NASA/SAO/CXC]

This document was last modified: August 29, 2011.