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Black Holes Encyclopedia

NGC 7457

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Stats

Type

Supermassive

Location

in the constellation Pegasus

Finder Chart

Distance

43 million light-years (13.2 megaparsecs)

Mass

2.1 million to 4.6 million times the mass of the Sun

Size

About 15 times the diameter of the Sun

Discovery Methods

Description

NGC 7457

This is one of the least-massive black holes yet detected in the core of a galaxy. It is roughly the same size and mass as the black hole at the center of our own galaxy, the Milky Way.

NGC 7457 is classified as a lenticular galaxy, so when viewed edge-on, it would look like a lens. Early observations with Hubble Space Telescope showed that the stars in its central bulge are more densely packed than expected.

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This document was last modified: February 17, 2011.

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