Gaia BH1

Black Hole

The closest known black hole to Earth, found by Gaia through the wobble of a Sun-like companion star rather than any X-ray glow.

Facts

TypeBlack Hole
Black hole typeStellar
Distance from Earth1,560 ly
Diameter57 km
Mass1.91 × 10^31 kg
Redshift0
Discovered2022

Gaia BH1 in context

Its mass is 9.6 times the mass of the Sun.

The light reaching us from Gaia BH1 tonight left it around 1,560 years ago.

Of the 15 black holes these pages cover, only 0 lie closer to us.

It has been on record since 2022.

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