Type

Stellar mass

Location

in the constellation Sagittarius

Distance

27,000 light-years

Mass

Roughly 10 times the mass of the Sun

Size

Diameter roughly equal to the size of a large city

Discovery Methods

• Detection of an accretion disk

The image from the Integral satellite in which the gamma-ray outburst was discovered. [ESA/EPIC/ISDC]

This document was last modified: May 31, 2011.