Type

Supermassive

Location

In the constellation Leo

Distance

38 million light-years (11.6 megaparsecs)

Mass

16 million times the mass of the Sun

Size

Diameter roughly the size of the orbit of Mercury, the closest planet to the Sun

Discovery Methods

• Measuring the motions of stars

Ground-based view of NGC 3384 (center) and M105. [SDSS]

This document was last modified: March 14, 2012.