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Gliese 494
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Star Gliese 494

Triple star system Gliese 494 is located 38 light years away from the Sun. It is a system with 3 stars. For now, there are no known exoplanets in this star system.
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Sun distance
38 light years
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Gliese 494 A

Red dwarf, flare star
Spectral class: M0V

Location +

Ascension iconRight ascension: 13h 0m 45.877s
Declination iconDeclination: 12° 22' 32.142'' (equatorial region)
Parallax iconParallax: 86.901
Distance iconSun distance: 37.532 ly | 11.5 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: 51.1 % M Sun
| 535 M Jupiter
+
Star mass
Mass of the star Gliese 494 A is 0.511 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
| 5.1 R Jupiter
(estimate)
+
Star size
Radius of the star Gliese 494 A is not known. Its estimated value based on other similar stars is about 50 % 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: 3725 K | 0.64 T Sun
+
Star temperature
Surface temperature of Gliese 494 A is 3725 K, which is 64 % 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: 0.014 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 iconApparent magnitude (V): 9.8
Magnitude iconAbsolute magnitude (V): 9.4
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 494 B

Red dwarf, flare star
Spectral class: M7V

Basic characteristic

icon weight
Mass: 9 % M Sun
| 94 M Jupiter
+
Star mass
Mass of the star Gliese 494 B is 0.511 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: 10 % R Sun
| 1.4 R Jupiter
(estimate)
+
Star size
Radius of the star Gliese 494 B is not known. Its estimated value based on other similar stars is about 10 % 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 iconTemperature: 2900 K
 (estimate)
+
Star temperature
Surface temperature of Gliese 494 B is estimated to be 2917 K, which is 50 % 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

ULAS J130041.74+122114.7

Brown dwarf, flare star
Spectral class: T8.5p

Basic characteristic

icon weight
Mass: 1 % M Sun
| 10 M Jupiter
+
Star mass
Mass of the star ULAS J130041.74+122114.7 is 0.09 solar masses (or 94.3 Jupiter 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: 10 % R Sun
| 0.5 R Jupiter
(estimate)
+
Star size
Radius of the star ULAS J130041.74+122114.7 is not known. Its estimated value based on other similar stars is about 10 % 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: 695 K | 0.12 T Sun
+
Star temperature
Surface temperature of ULAS J130041.74+122114.7 is 695 K, which is 12 % 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
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Gliese 494 system structure

 Gliese 494 A
Gliese 494 B
ULAS J130041.74+122114.7

More about Gliese 494

       Gliese 494 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
GJ 494 C, SDSS J130041.93+122114.7, Ross 458C, WDS J13008+1223C, WISEP J130041.65+122114.6, BEU 16, G 60-57, G 61-27, BD+13 2618, GJ 494, HIC 63510, HIP 63510, LFT 964, LHS 2665, LTT 13752, NLTT 32600, 2MASS J13004666+1222325, Ross 458, TIC 88138162, TYC 886-839-1, V* DT Vir, WISEA J130046.11+122232.4, Wolf 462, DT Virginis, DT Vir, Gaia EDR3 3737308025029348608
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External sources
icon study
3-D selection of 167 sub-stellar companions to nearby stars
Scientific study, Accepted: 26. 08. 2022
simbad icon
Simbad database (ULAS J130041.74+122114.7)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)

Frequently Asked Questions

How far is the Gliese 494 system from the Sun?

The Gliese 494 system is 38 light years or 11.5 parsecs from the Sun.

What galaxy is the Gliese 494 star in?

The Gliese 494 is in the Milky Way galaxy just like the Sun.

How many stars are in the Gliese 494 system?

The Gliese 494 system contains 3 stars.

What type of star is the Gliese 494?

The primary in the Gliese 494 system is a Red dwarf star.

What temperature is star Gliese 494?

The primary in the Gliese 494 system has a temperature of 3725 K. Find out more about the temperature of stars in Stellar guide
Closest stars

 HD 115404
 0.7 M☉ 4.5 ly

ULAS J133553.45+113005.2
 0.02 M☉ 7 ly

2MASSI J1300+1912
 - 8.6 ly

BD+09 2636
 - 8.8 ly

HD 110315
 0.73 M☉ 8.9 ly
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