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Lambda Aurigae
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Star Lambda Aurigae

Subgiant Lambda Aurigae is located 41 light years away from the Sun. It is a single star of spectral class G1.5IV-VFe-1, that has 108 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
41 light years
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Lambda Aurigae

Subgiant, High proper motion star
Spectral class: G1.5IV-VFe-1

Location +

Ascension iconRight ascension: 5h 19m 9.203s
Declination iconDeclination: 40° 5' 45.953'' (northern hemisphere)
Parallax iconParallax: 79.602
Distance iconSun distance: 40.973 ly | 12.6 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: 108.1 % M Sun
| 1132 M Jupiter
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Star mass
Mass of the star Lambda Aurigae is 1.081 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: 133 % R Sun
| 13.2 R Jupiter
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Star size
Radius of the star Lambda Aurigae is 1.331 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: 5931 K | 1.03 T Sun
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Star temperature
Surface temperature of Lambda Aurigae is 5931 K, which is 103 % 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: 5 billions years | 1.09 Sun
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Star age
Star Lambda Aurigae is 5 billion years old, which is about 1.09 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
luminosity icon
Luminosity: 1.732 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

Magnitude iconApparent magnitude (V): 4.7
Magnitude iconAbsolute magnitude (V): 4.2
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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Lambda Aurigae system structure

 Lambda Aurigae

More about Lambda Aurigae

Nearby star Lambda Aurigae is is approximately 33 % bigger than the Sun and temperature on its surface is around 5931 K (5658 °C), which is about 103 % of Sun's temperature.
       Lambda Aurigae can be found in northern celestial hemisphere, and it is possible to see it with naked eye. The star is easily observable from Northern America, Europe and Asia.
Other designations of this star
15 Aurigae, BD+39° 1248, FK5 1145, GJ 197, Gliese 197, HD 34411, HIP 24813, HIC 24813, HR 1729, LFT 403, LHS 1753, LTT 11625, SAO 40233, NLTT 14837, TIC 409104974, TYC 2900-2157-1, STF 5003A, 15 Aur, TD1 4327, Al Hurr, * lam Aur, Gaia EDR3 188771135583573504
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External sources
simbad icon
Simbad database (* lam Aur)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 188771135583573504)
Archive from the Gaia mission

Frequently Asked Questions

How far is the Lambda Aurigae system from the Sun?

The Lambda Aurigae system is 41 light years or 12.6 parsecs from the Sun.

What galaxy is the Lambda Aurigae star in?

The Lambda Aurigae is in the Milky Way galaxy just like the Sun.

How many stars are in the Lambda Aurigae system?

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

What type of star is the Lambda Aurigae?

The star Lambda Aurigae is a Subgiant star.

What temperature is star Lambda Aurigae?

The star Lambda Aurigae has an effective temperature of 5931 K. Find out more about the temperature of stars in Stellar guide
Class of stars Subgiant
A subgiant is a term used to describe a luminous star that is typically running out of hydrogen for nuclear fusion and is thus departing from the main sequence. These stars are classified as Yerkes luminosity class IV.
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