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Gliese 338
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Star Gliese 338

Binary star Gliese 338 is located 21 light years away from the Sun. It consists of a orange star and a red dwarf. There is at least one exoplanet in this system.
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Sun distance
21 light years
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Gliese 338 A

Orange star, flare star, Spectroscopic binary
Spectral class: K7V

Location +

Ascension iconRight ascension: 9h 14m 20.058s
Declination iconDeclination: 52° 41' 2.689'' (northern hemisphere)
Parallax iconParallax: 157.888
Distance iconSun distance: 20.657 ly | 6.3 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: 69 % M Sun
| 723 M Jupiter
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Star mass
Mass of the star Gliese 338 A is 0.69 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: 58 % R Sun
| 5.8 R Jupiter
+
Star size
Radius of the star Gliese 338 A is 0.58 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: 4024 K | 0.7 T Sun
+
Star temperature
Surface temperature of Gliese 338 A is 4024 K, which is 70 % 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
luminosity icon
Luminosity: 1.20 L Sun
+
Star luminosity
Luminosity is the total amount of energy a star gives off every second. Think of it as the star’s true brightness — not just how bright it looks from Earth. This is important because some stars may appear dim simply because they are far away, not because they’re actually faint... icon More about Star luminosity in StellarGuide

Photometry

Magnitude iconAbsolute magnitude (V): 1
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 338 B

Red dwarf, flare star, , Spectroscopic binary
Spectral class: M0V

Basic characteristic

icon weight
Mass: 64 % M Sun
| 670 M Jupiter
+
Star mass
Mass of the star Gliese 338 B is 0.69 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: 58 % R Sun
| 5.8 R Jupiter
+
Star size
Radius of the star Gliese 338 B is 0.58 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: 4005 K | 0.69 T Sun
+
Star temperature
Surface temperature of Gliese 338 B is 4005 K, which is 69 % 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
luminosity icon
Luminosity: 1.20 L Sun
+
Star luminosity
Luminosity is the total amount of energy a star gives off every second. Think of it as the star’s true brightness — not just how bright it looks from Earth. This is important because some stars may appear dim simply because they are far away, not because they’re actually faint... icon More about Star luminosity 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
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Gliese 338 system structure

 Gliese 338 A
Gliese 338 B
Gliese 338 B b 0.14 AU 10 M⊕ 24.5 days

More about Gliese 338

       Gliese 338 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
HD 79211, LFT 635, LHS 261, LTT 12426, HIC 120005, HIP 120005, HD 79210, LFT 634, LHS 260, LTT 12425, ADS 7251, MCC 541, HIC 45343, HIP 45343, GJ 338, Gaia EDR3 1022456139210632064
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External sources
simbad icon
Simbad database (HD 79211)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 1022456104850892928)
Archive from the Gaia mission

Frequently Asked Questions

How far is the Gliese 338 system from the Sun?

The Gliese 338 system is 21 light years or 6.3 parsecs from the Sun.

What galaxy is the Gliese 338 star in?

The Gliese 338 is in the Milky Way galaxy just like the Sun.

How many stars are in the Gliese 338 system?

The Gliese 338 system contains 2 stars.

What type of star is the Gliese 338?

The primary in the Gliese 338 system is a Orange star star.

What temperature is star Gliese 338?

The primary in the Gliese 338 system has a temperature of 4024 K. Find out more about the temperature of stars in Stellar guide
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