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Gliese 1151
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Star Gliese 1151

Red dwarf Gliese 1151 is located 26 light years away from the Sun. It is a single star of spectral class M4.5Ve C, that has 15 % of solar mass. There are multiple known exoplanets in this system.
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Sun distance
26 light years
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Gliese 1151

Red dwarf, High proper motion star
Spectral class: M4.5Ve C

Location +

Ascension iconRight ascension: 11h 50m 55.248s
Declination iconDeclination: 48° 22' 23.159'' (northern hemisphere)
Parallax iconParallax: 124.338
Distance iconSun distance: 26.231 ly | 8.0 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: 15.4 % M Sun
| 161 M Jupiter
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Star mass
Mass of the star Gliese 1151 is 0.1540 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: 19 % R Sun
| 1.9 R Jupiter
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Star size
Radius of the star Gliese 1151 is 0.1903 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: 3221 K | 0.56 T Sun
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Star temperature
Surface temperature of Gliese 1151 is 3221 K, which is 56 % 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
time icon
Age: 2.5 billions years | 0.54 Sun
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Star age
Star Gliese 1151 is 2.5 billion years old, which is about 0.54 of the Sun's age.

The age of a star tells us how long it has been shining since it formed. Knowing a star’s age helps astronomers understand its life stage, how it has changed over time, and what will happen to it in the future... icon More about Star age in StellarGuide

Photometry

Magnitude iconAbsolute magnitude (V): 0.5
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 1151 system structure

 Gliese 1151
Gliese 1151 b
unconfirmed
 0.02 AU 1 M⊕ 1.4 R⊕ 2 days
Gliese 1151 c
unconfirmed
 0.57 AU 10.6 M⊕ 389.7 days

More about Gliese 1151

Nearby star Gliese 1151 is a main sequence star that fuses hydrogen atoms into helium. It is approximately 20 % of the size of Sun and temperature on its surface is around 3221 K (2948 °C), which is about 56 % of Sun's temperature.
       Gliese 1151 can be found in northern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.
Other designations of this star
G 122-49, LHS 316, PLX 2739.0, NLTT 28752, Zkh 171, GJ 1151, 2MASS J11505787+4822395, TIC 11893637, WISEA J115056.09+482228.4, Gaia EDR3 786834302080370304
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External sources
icon study
icon study
simbad icon
Simbad database (G 122-49)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 786834302080370304)
Archive from the Gaia mission

Frequently Asked Questions

How far is the Gliese 1151 system from the Sun?

The Gliese 1151 system is 26 light years or 8.0 parsecs from the Sun.

What galaxy is the Gliese 1151 star in?

The Gliese 1151 is in the Milky Way galaxy just like the Sun.

How many stars are in the Gliese 1151 system?

The Gliese 1151 is a single star, there are no other known stars in the system.

What type of star is the Gliese 1151?

The star Gliese 1151 is a Red dwarf star.

What temperature is star Gliese 1151?

The star Gliese 1151 has an effective temperature of 3221 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

 Beta Canum Venaticorum
 1 M☉ 5 ly

CWISE J1055+5443
 0.01 M☉ 6.2 ly

Argelanders Star
 0.66 M☉ 6.4 ly

Gliese 450
 0.49 M☉ 6.7 ly

HD 115953
 - 8 ly
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