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Exoplanet Gliese 229 A c
Exoplanet Gliese 229 A c orbits star Gliese 229 A that lies 19 light years away from the Sun.
It weighs about 7.93 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
19 light years
19 light years
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Gliese 229 A c
Exoplanet, super-earth
Star: Gliese 229 A
Distance from the star: 0.339 AU
Orbit around star: 121.995 days
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Orbital period
Orbital period of exoplanet Gliese 229 A c around its star is 121.995 days.
The orbital period of an exoplanet is the time it takes to complete one full orbit around its star, usually measured in days. Most of the exoplanets discovered so far have orbital periods of less than one year...
More about Orbital period in StellarGuide
Basic characteristic
Mass: 7.93 M Earth
Exoplanet mass
Exoplanet Gliese 229 A c has 7.93 Earth masses, or 0.54 times the mass of Uranus.
The mass of an exoplanet is one of the most important characteristics for understanding what kind of world it is — whether it’s small and rocky like Earth or large and gaseous like Jupiter. Mass provides key information about the planet’s composition, gravity, and formation history...
More about Exoplanet mass in StellarGuide
Year of discovery: 2020 (radial velocity)
Other designations of this exoplanet
HD 42581 c, HIP 29295 c, LHS 1827 c, NSV 2863 c, SAO 171334 c, TYC 5945-765-1 c, WISE J061034.53-215200.3 c, GJ 229 c
HD 42581 c, HIP 29295 c, LHS 1827 c, NSV 2863 c, SAO 171334 c, TYC 5945-765-1 c, WISE J061034.53-215200.3 c, GJ 229 c
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Gliese 229 system structure
Exoplanet Gliese 229 A c orbits star Gliese 229 A, which has lower mass than Sun. It is one of 2 known exoplanets orbiting this star.
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Gliese 229 A | ||||||||
| Gliese 229 A c | 0.34 AU (HZ) | 7.9 M⊕ | 122 days | ||||||
| Gliese 229 A b | 0.9 AU | 10.2 M⊕ | - | ||||||
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Gliese 229 Ba | ||||||||
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Gliese 229 Bb | ||||||||
Comparison
When comparing to the Solar system planets, Gliese 229 A c has 54 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 144.18 | 9.73 | 7.93 | 72.09 | 0.02 | 0.08 | 0.54 | 0.46 |
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Distance | 0.87 | 0.47 | 0.34 | 0.22 | 0.07 | 0.04 | 0.02 | 0.01 |
Habitability
Habitable zone of the star: 0.29 - 0.41 AU
The planet is orbiting inside the habitable zone of its star.