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Gliese 22
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Star Gliese 22

Triple star system Gliese 22 is located 32 light years away from the Sun. It is a system with 3 stars. There is at least one exoplanet in this system.
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Sun distance
32 light years
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Gliese 22 B

Red dwarf, flare star, High proper motion star
Spectral class: M3V

Basic characteristic

icon weight
Mass: 20 % M Sun
| 396 M Jupiter
(estimate)
Array
radius icon
Size: 40 % R Sun
| 4 R Jupiter
(estimate)
+
Star size
Radius of the star Gliese 22 B is not known. Its estimated value based on other similar stars is about 40 % solar radii.

The size of a star refers to its radius — the distance from its center to its surface. Star size is usually measured in solar radii (R☉), where 1 solar radius equals approximately 696,000 kilometers. Depending on their type and life stage, stars can be much smaller or larger than the Sun... icon More about Star size in StellarGuide
temperature icon
Temperature: 3339 K | 0.58 T Sun
+
Star temperature
Surface temperature of Gliese 22 B is 3339 K, which is 58 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide

Photometry

Magnitude iconApparent magnitude (V): 12.2
Magnitude iconAbsolute magnitude (V): 12.2
Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
5
10
15
20
25
30
35
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

Gliese 22 C

Red dwarf, flare star, , High proper motion star

Basic characteristic

icon weight
Mass: 13.6 % M Sun
| 142 M Jupiter
+
Star mass
Mass of the star Gliese 22 C is 0.2 solar masses.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide
temperature iconTemperature: 3400 K
 (estimate)
+
Star temperature
Surface temperature of Gliese 22 C is estimated to be 3433 K, which is 59 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide

Photometry

Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
5
10
15
20
25
30
35
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

Gliese 22 A

Red dwarf, flare star, , , High proper motion star
Spectral class: M2V

Location +

Ascension iconRight ascension: 0h 32m 34.333s
Declination iconDeclination: 67° 14' 3.582'' (northern hemisphere)
Parallax iconParallax: 101.086
Distance iconSun distance: 32.265 ly | 9.9 pc
Star position
The position of a star tells us where it appears in the sky, similar to how we use coordinates like latitude and longitude on Earth. In astronomy, the three main coordinates are right ascension, declination and distance. .. icon More about Star position in StellarGuide

Basic characteristic

icon weight
Mass: 37.8 % M Sun
| 396 M Jupiter
+
Star mass
Mass of the star Gliese 22 A is 0.136 solar masses.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide
radius icon
Size: 50 % R Sun
| 5 R Jupiter
+
Star size
Radius of the star Gliese 22 A is 0.5 solar radii.

The size of a star refers to its radius — the distance from its center to its surface. Star size is usually measured in solar radii (R☉), where 1 solar radius equals approximately 696,000 kilometers. Depending on their type and life stage, stars can be much smaller or larger than the Sun... icon More about Star size in StellarGuide
temperature icon
Temperature: 3598 K | 0.62 T Sun
+
Star temperature
Surface temperature of Gliese 22 A is 3598 K, which is 62 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide

Photometry

Magnitude iconApparent magnitude (V): 10.3
Magnitude iconAbsolute magnitude (V): 10.3
Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
5
10
15
20
25
30
35
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
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Gliese 22 system structure

 Gliese 22 B
Gliese 22 B b
unconfirmed
 n/a 5086.5 M⊕ 5500 days
Gliese 22 C
Gliese 22 A

More about Gliese 22

Nearby star Gliese 22 is a main sequence star that fuses hydrogen atoms into helium. 
       Gliese 22 can be found in northern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope. The star is easily observable from Northern America, Europe and Asia.
Other designations of this star
LHS 115, VYS 2B, ADS 433 B, GJ 22 B, Gliese 22 B, LFT 48, LTT 10179, NLTT 1708, 2MASS J00322979+6714043, TIC 420470815, TYC 4027-802-1, Zkh 11, BD+66 34B, MCY 1, VYS 2A, ADS 433 AC, GJ 22 A, LFT 47, LHS 114, LTT 10178, 2MASS J00322970+6714080, NLTT 1707, TIC 420470817, TYC 4027-803-1, V547 Cas, WDS J00321+6715Aa, Gliese 22, V547 Cassiopeiae, BD+66 34A, ADS 440, Gaia EDR3 527956488340229632
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External sources
icon study
simbad icon
Simbad database (BD+66 34A)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 527956488340229632)
Archive from the Gaia mission

Frequently Asked Questions

How far is the Gliese 22 system from the Sun?

The Gliese 22 system is 32 light years or 9.9 parsecs from the Sun.

What galaxy is the Gliese 22 star in?

The Gliese 22 is in the Milky Way galaxy just like the Sun.

How many stars are in the Gliese 22 system?

The Gliese 22 system contains 3 stars.

What type of star is the Gliese 22?

The primary in the Gliese 22 system is a Red dwarf star.

What temperature is star Gliese 22?

The primary in the Gliese 22 system has a temperature of 3598 K. Find out more about the temperature of stars in Stellar guide
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