Type

Supermassive

Location

In the constellation Hydra

Distance

165 million light-years (50 megaparsecs)

Mass

31 million times the mass of the Sun

Size

Diameter larger than the orbit of Mercury

Discovery Methods

• Detection of an accretion disk

A view of the central regions of NGC 3393 from Hubble Space Telescope. The twin black holes are located inside the bright double-lobed structure at center. [NASA/STScI]

This document was last modified: March 14, 2012.