Star Gliese 831

Binary star Gliese 831 is located 24 light years away from the Sun. It consists of 2 red dwarf stars. For now, there are no known exoplanets in this star system.

Gliese 831 B

Red dwarf, High proper motion star

Spectral class: M4.5 V

Basic characteristic

Mass: 12 % M Sun

Size: 20 % R Sun (estimate)

Gliese 831 A

Red dwarf, High proper motion star

Spectral class: M4.5 V

Location

Right ascension: 21h 31m 18.569s

Declination: -9° 47' 26.482'' (equatorial region)

Parallax: 134.08

Sun distance: 24.325 ly | 7.5 pc

Basic characteristic

Mass: 22 % M Sun

Size: 30 % R Sun (estimate)

Photometry

Apparent magnitude (V): 12

Absolute magnitude (V): 12.6

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).

Gliese 831 system structure


	Gliese 831 B
	Gliese 831 A

More about Gliese 831

Nearby star Gliese 831 is a main sequence star that fuses hydrogen atoms into helium.

       Gliese 831 can be found in southern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.

Other designations of this star
Wolf 922, HIC 106255, HIP 106255, LFT 163, LTT 8556, NLTT 51428, LHS 511, BB Cap, BLA 9, BB Capricornus

External sources

Simbad database (Wolf 922)

Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)

Closest stars

Gliese 4274	0.17 M☉	6.2 ly
Gliese 849	0.45 M☉	6.7 ly
LP 816-60	0.19 M☉	7.4 ly
Gliese 1276	0.54 M☉	10 ly
FK Aquarii	0.42 M☉	10.2 ly

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