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Gliese 793
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Star Gliese 793

Red dwarf Gliese 793 is located 26 light years away from the Sun. It is a single star of spectral class M3 V, that has 39 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
26 light years
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Gliese 793

Red dwarf, High proper motion star
Spectral class: M3 V

Location +

Ascension iconRight ascension: 20h 30m 33.189s
Declination iconDeclination: 65° 27' 2.945'' (northern hemisphere)
Parallax iconParallax: 123.655
Distance iconSun distance: 26.376 ly | 8.1 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: 39 % M Sun
| 409 M Jupiter
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Star mass
Mass of the star Gliese 793 is 0.39 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: 40 % R Sun
| 4.4 R Jupiter
(estimate)
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Star size
Radius of the star Gliese 793 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: 3471 K | 0.6 T Sun
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Star temperature
Surface temperature of Gliese 793 is 3471 K, which is 60 % 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: 0.018 L Sun
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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 793 system structure

 Gliese 793

More about Gliese 793

Nearby star Gliese 793 is a main sequence star that fuses hydrogen atoms into helium. It is approximately 40 % of the size of Sun and temperature on its surface is around 3471 K (3198 °C), which is about 60 % of Sun's temperature.
       Gliese 793 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
HIP 101180, LHS 3558, LTT 15991, G 262-15, LFT 1552, LTT 15991, NLTT 49417, MCC 820, Gaia EDR3 2246206567973292160
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External sources
simbad icon
Simbad database (G 262-15)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 2246206567973292160)
Archive from the Gaia mission

Frequently Asked Questions

How far is the Gliese 793 system from the Sun?

The Gliese 793 system is 26 light years or 8.1 parsecs from the Sun.

What galaxy is the Gliese 793 star in?

The Gliese 793 is in the Milky Way galaxy just like the Sun.

How many stars are in the Gliese 793 system?

The Gliese 793 is a single star, there are no other known stars in the system.

What type of star is the Gliese 793?

The star Gliese 793 is a Red dwarf star.

What temperature is star Gliese 793?

The star Gliese 793 has an effective temperature of 3471 K. Find out more about the temperature of stars in Stellar guide
Class of stars Red dwarf
Red dwarfs are small, cool stars with surface temperatures of about 2,000–3,800 K, much cooler than the Sun. They usually have 8–50% of the Sun’s mass and shine very faintly, sometimes at just a tiny fraction of the Sun’s brightness. Classified mainly as spectral type M, they are the most common stars in the Milky Way, making up roughly 70–75% of its stellar population.

They fuse hydrogen slowly through the proton–proton chain and are fully convective, which allows them to use their fuel very efficiently. As a result, red dwarfs can live for tens of billions to trillions of years—far longer than the Sun. Many exoplanets orbit red dwarfs, including some in close habitable zones, though strong stellar activity can affect planetary environments.
Closest stars

 Gliese 809
 0.61 M☉ 3.9 ly

TYC 3980-1081-1
 0.2 M☉ 5.4 ly

Gliese 1253
 0.17 M☉ 6 ly

Gliese 4053
 0.16 M☉ 6.1 ly

Chi Draconis
 1 M☉ 6.1 ly
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