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Gliese 3942
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Star Gliese 3942

Red dwarf Gliese 3942 is located 55 light years away from the Sun. It is a single star of spectral class M0.5Ve C, that has 63 % of solar mass. There are multiple known exoplanets in this system.
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Sun distance
55 light years
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Gliese 3942

Red dwarf, High proper motion star
Spectral class: M0.5Ve C

Location +

Ascension iconRight ascension: 16h 9m 3.503s
Declination iconDeclination: 52° 56' 38.950'' (northern hemisphere)
Parallax iconParallax: 58.997
Distance iconSun distance: 55.283 ly | 16.9 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: 63 % M Sun
| 660 M Jupiter
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Star mass
Mass of the star Gliese 3942 is 0.63 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: 61 % R Sun
| 6.1 R Jupiter
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Star size
Radius of the star Gliese 3942 is 0.61 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: 3850 K | 0.67 T Sun
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Star temperature
Surface temperature of Gliese 3942 is 3850 K, which is 67 % 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 iconAbsolute magnitude (V): -1.1
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
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Gliese 3942 system structure

 Gliese 3942
Gliese 3942 b 0.06 AU 7.2 M⊕ 6.9 days
Gliese 3942 c
unconfirmed
 0.08 AU 6.3 M⊕ 10.4 days

More about Gliese 3942

Nearby star Gliese 3942 is a main sequence star that fuses hydrogen atoms into helium. It is approximately 60 % of the size of Sun and temperature on its surface is around 3850 K (3577 °C), which is about 67 % of Sun's temperature.
       Gliese 3942 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 3942, HIC 79126, HIP 79126, AC +53 2527-109, LSPM J1609+5256, 2MASS J16090309+5256379, TIC 162494287, TYC 3877-1000-1, USNO-B1.0 1429-00309462, MCC 759, Gaia EDR3 1428030622526979968
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External sources
icon study
Examining the rotation of the planet-hosting M dwarf GJ 3942
Scientific study, Accepted: 08. 11. 2024
simbad icon
Simbad database (MCC 759)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 1428030622526979968)
Archive from the Gaia mission

Frequently Asked Questions

How far is the Gliese 3942 system from the Sun?

The Gliese 3942 system is 55 light years or 16.9 parsecs from the Sun.

What galaxy is the Gliese 3942 star in?

The Gliese 3942 is in the Milky Way galaxy just like the Sun.

How many stars are in the Gliese 3942 system?

The Gliese 3942 is a single star, there are no other known stars in the system.

What type of star is the Gliese 3942?

The star Gliese 3942 is a Red dwarf star.

What temperature is star Gliese 3942?

The star Gliese 3942 has an effective temperature of 3850 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.
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14 Herculis
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