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Epsilon Geminorum
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Star Epsilon Geminorum

Yellow supergiant Epsilon Geminorum is located 845 light years away from the Sun. It is a single star of spectral class G8 Ib, that has 1920 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
845 light years
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Epsilon Geminorum

Yellow supergiant
Spectral class: G8 Ib

Location +

Ascension iconRight ascension: 6h 43m 55.926s
Declination iconDeclination: 25° 7' 52.052'' (northern hemisphere)
Parallax iconParallax: 3.860
Distance iconSun distance: 844.964 ly | 259.1 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: 1920 % M Sun
| 20113 M Jupiter
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Star mass
Mass of the star Epsilon Geminorum is 19.2 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: 14000 % R Sun
| 1393.2 R Jupiter
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Star size
Radius of the star Epsilon Geminorum is 140 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: 4662 K | 0.81 T Sun
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Star temperature
Surface temperature of Epsilon Geminorum is 4662 K, which is 81 % 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: 0.008 billions years | 0 Sun
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Star age
Star Epsilon Geminorum is 0.008 billion years old, which is about 0 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: 8500 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
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Epsilon Geminorum system structure

 Epsilon Geminorum

More about Epsilon Geminorum

Star Epsilon Geminorum is is much bigger than the Sun and temperature on its surface is around 4662 K (4389 °C), which is about 81 % of Sun's temperature.
       Epsilon Geminorum can be found in northern celestial hemisphere.
Other designations of this star
Epsilon Gem, ε Gem, 27 Geminorum, FK5 254, HD 48329, HIC 32246, HIP 32246, HR 2473, SAO 78682, Mebsuta
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Frequently Asked Questions

How far is the Epsilon Geminorum system from the Sun?

The Epsilon Geminorum system is 845 light years or 259.1 parsecs from the Sun.

What galaxy is the Epsilon Geminorum star in?

The Epsilon Geminorum is in the Milky Way galaxy just like the Sun.

How many stars are in the Epsilon Geminorum system?

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

What type of star is the Epsilon Geminorum?

The star Epsilon Geminorum is a Yellow supergiant star.

What temperature is star Epsilon Geminorum?

The star Epsilon Geminorum has an effective temperature of 4662 K. Find out more about the temperature of stars in Stellar guide
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