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Rigel
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Star Rigel

Multiple star system Rigel is located 860 light years away from the Sun. It is a system with 4 stars. For now, there are no known exoplanets in this star system.
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Sun distance
860 light years
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Rigel A

Blue supergiant
Spectral class: B8 Ia

Location +

Ascension iconRight ascension: 5h 14m 32.272s
Declination iconDeclination: 0° 12' 5.898'' (equatorial region)
Parallax iconParallax: 3.793
Distance iconSun distance: 860.000 ly | 263.7 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: 2100 % M Sun
| 21999 M Jupiter
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Star mass
Mass of the star Rigel A is 21 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: 7890 % R Sun
| 785.2 R Jupiter
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Star size
Radius of the star Rigel A is 78.9 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: 12100 K | 2.09 T Sun
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Star temperature
Surface temperature of Rigel A is 12100 K, which is 209 % 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 Rigel A 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

Rigel Ba

Blue-white star
Spectral class: B9V

Basic characteristic

icon weight
Mass: 384 % M Sun
| 4023 M Jupiter
+
Star mass
Mass of the star Rigel Ba is 21 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: 300 % R Sun
| 30.3 R Jupiter
(estimate)
+
Star size
Radius of the star Rigel Ba is not known. Its estimated value based on other similar stars is about 300 % 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: 11800 K
 (estimate)
+
Star temperature
Surface temperature of Rigel Ba is estimated to be 11768 K, which is 204 % 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

Rigel Bb

Blue-white star
Spectral class: B9V

Basic characteristic

icon weight
Mass: 294 % M Sun
| 3080 M Jupiter
+
Star mass
Mass of the star Rigel Bb is 3.84 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: 230 % R Sun
| 22.9 R Jupiter
(estimate)
+
Star size
Radius of the star Rigel Bb is not known. Its estimated value based on other similar stars is about 230 % 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: 11800 K
 (estimate)
+
Star temperature
Surface temperature of Rigel Bb is estimated to be 11768 K, which is 204 % 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

Rigel C

Blue-white star
Spectral class: B9V

Basic characteristic

icon weight
Mass: 384 % M Sun
| 4023 M Jupiter
+
Star mass
Mass of the star Rigel C is 2.94 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: 300 % R Sun
| 30.3 R Jupiter
(estimate)
+
Star size
Radius of the star Rigel C is not known. Its estimated value based on other similar stars is about 300 % 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: 11800 K
 (estimate)
+
Star temperature
Surface temperature of Rigel C is estimated to be 11768 K, which is 204 % 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
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Rigel system structure

Stars B and C form a pair, which orbits the primary star A.
 Rigel A
Rigel Ba
Rigel Bb
Rigel C

More about Rigel

       Rigel can be found in northern celestial hemisphere.
Other designations of this star
β Orionis, Beta Orionis, ADS 3823, STF 668, H II 33, BU 555, CCDM J05145-0812, WDS J05145-0812
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Frequently Asked Questions

How far is the Rigel system from the Sun?

The Rigel system is 860 light years or 263.7 parsecs from the Sun.

What galaxy is the Rigel star in?

The Rigel is in the Milky Way galaxy just like the Sun.

How many stars are in the Rigel system?

The Rigel system contains 4 stars.

What type of star is the Rigel?

The primary in the Rigel system is a Blue supergiant star.

What temperature is star Rigel?

The primary in the Rigel system has a temperature of 12100 K. Find out more about the temperature of stars in Stellar guide
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