Star Gaia BH3

Binary star Gaia BH3 is located 1983 light years away from the Sun. It consists of a black hole and a yellow star. For now, there are no known exoplanets in this star system.

Gaia BH3 A

Black hole

Location

Right ascension: 19h 39m 18.69s

Declination: 14° 55' 51.527'' (equatorial region)

Parallax: 1.644

Sun distance: 1983.496 ly | 608.1 pc

Basic characteristic

Mass: 3270 % M Sun

Gaia BH3 B

Yellow star

Basic characteristic

Mass: 76 % M Sun

Size: 494 % R Sun

Temperature: 5212 K | 0.9 T Sun

Photometry

K
2.1

H
1.6

J
1.2

Grp
0.8

I
0.8

G
0.6

V
0.5

Gbp
0.5

B
0.4

U
0.3

Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).

Gaia BH3 system structure

	Gaia BH3 A
	Gaia BH3 B

More about Gaia BH3

       Gaia BH3 can be found in northern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.

Other designations of this star
2MASS J19391872+1455542, LS II +14 13, Gaia DR3 4318465066420528000

External sources

Discovery of a dormant 33 solar-mass black hole in pre-release Gaia astrometry

Scientific study, Accepted: 16. 04. 2024

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