Type

Supermassive

Location

In the constellation Leo

Distance

65 million light-years (19.9 megaparsecs)

Mass

125 million times the mass of the Sun

Size

Diameter larger than the size of the orbit of Mars

Discovery Methods

• Measuring the motions of stars

NGC 3607, which is the largest, brightest object in this image, is the largest member of a small collection of galaxies known as the NGC 3607 Group. It includes NGC 3608 (left) and NGC 3605 (right). [Isaac Newton Telescope]

This document was last modified: March 14, 2012.