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Exoplanet 66 G. Centauri A b
Exoplanet 66 G. Centauri A b orbits star 66 G. Centauri A that lies 30 light years away from the Sun.
It weighs about 15.9 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
30 light years
30 light years
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66 G. Centauri A b
Exoplanet
Star: 66 G. Centauri A
Distance from the star: 0.46 AUBasic characteristic
Mass: 15.9 M Earth
Exoplanet mass
Exoplanet 66 G. Centauri A b has 15.9 Earth masses, or 0.92 times the mass of Neptune.
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
Other designations of this exoplanet
Gliese 442 b, HD 102365 b, HR 4523 b, 66 G. Centauri b, CD -39°7301 b, LHS 311 b, LTT 4373 b, GCTP 2725.00 b, SAO 223020 b, HIP 57443 b
Gliese 442 b, HD 102365 b, HR 4523 b, 66 G. Centauri b, CD -39°7301 b, LHS 311 b, LTT 4373 b, GCTP 2725.00 b, SAO 223020 b, HIP 57443 b
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66 G. Centauri system structure
Exoplanet 66 G. Centauri A b orbits star 66 G. Centauri A, which has lower mass than Sun. It is the only known exoplanet orbiting this star
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66 G. Centauri A | ||||||||
| 66 G. Centauri A b | 0.46 AU | 15.9 M⊕ | - | ||||||
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66 G. Centauri B | ||||||||
Comparison
When comparing to the Solar system planets, 66 G. Centauri A b has 92 % of mass of Neptune and it orbits its star between distances of Mercury and Venus from the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 289.09 | 19.51 | 15.9 | 144.55 | 0.05 | 0.17 | 1.09 | 0.92 |
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Distance | 1.18 | 0.64 | 0.46 | 0.3 | 0.09 | 0.05 | 0.02 | 0.02 |
Habitability
Habitable zone of the star: 0.99 - 1.4 AU
The planet is too hot to sustain liquid water.