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CW Leonis
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Star CW Leonis

CW Leonis is located 424 light years away from the Sun. It is a single star of spectral class C9.5e, that has 80 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
424 light years
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CW Leonis

Spectral class: C9.5e

Location +

Ascension iconRight ascension: 9h 47m 57.444s
Declination iconDeclination: 13° 16' 43.608'' (equatorial region)
Parallax iconParallax: 7.692
Distance iconSun distance: 424.000 ly | 130.0 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: 80 % M Sun
| 838 M Jupiter
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Star mass
Mass of the star CW Leonis is 0.8 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: 56000 % R Sun
| 5572.7 R Jupiter
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Star size
Radius of the star CW Leonis is 560 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: 2200 K | 0.38 T Sun
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Star temperature
Surface temperature of CW Leonis is 2200 K, which is 38 % 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
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

Photometry

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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CW Leonis system structure

 CW Leonis

More about CW Leonis

Star CW Leonis is is much bigger than the Sun and temperature on its surface is around 2200 K (1927 °C), which is about 38 % of Sun's temperature.
       CW Leonis can be found in northern celestial hemisphere.
Other designations of this star
CW Leo, Peanut Nebula, IRC+10216, IRAS 09452+1330, PK 221+45 1, Zel 0945+135, RAFGL 1381, 2MASS J09475740+1316435, SCM 50, Gaia DR3 614377930478412032
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External sources
icon study
gaia icon
Gaia database (Gaia DR3 614377930478412032)
Archive from the Gaia mission

Frequently Asked Questions

How far is the CW Leonis system from the Sun?

The CW Leonis system is 424 light years or 130.0 parsecs from the Sun.

What galaxy is the CW Leonis star in?

The CW Leonis is in the Milky Way galaxy just like the Sun.

How many stars are in the CW Leonis system?

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

What type of star is the CW Leonis?

The star CW Leonis is a star.

What temperature is star CW Leonis?

The star CW Leonis has an effective temperature of 2200 K. Find out more about the temperature of stars in Stellar guide
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icon Data in Stellar Catalog come from trusted scientific sources. Primary source is Gaia space telescope mapping the stars in Milky Way. Other sources include research papers, Simbad catalog and Exoplanet.eu database.
Estimated values
icon Objects listed in the Stellar Catalog often have values that are estimates. These estimates are determined using their known characteristics, such as spectral type, brightness across different wavelengths, distance from a star, and other factors.
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