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Exoplanet HD 122303 b
Exoplanet HD 122303 b orbits star HD 122303 that lies 34 light years away from the Sun.
It weighs about 7.6 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
34 light years
34 light years
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HD 122303 b
Exoplanet, super-earth
Star: HD 122303
Distance from the star: 0.0668 AU
Orbit around star: 8.70874 days
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Orbital period
Orbital period of exoplanet HD 122303 b around its star is 8.70874 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: 7.6 M Earth
Exoplanet mass
Exoplanet HD 122303 b has 7.6 Earth masses, or 0.52 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
Temperature: 451 K | 177.85 °C
Year of discovery: 2016 (radial velocity)
Other designations of this exoplanet
LHS 2842 b, BD-01 2892 b, DO 3431 b, G 64-35 b, GJ 536 b, Gliese 536 b, HIC 68469 b, HIP 68469 b, LFT 1061 b, L 979-36 b, LPM 504 b, LTT 5470 b, 2MASS J14010324-0239180 b, NLTT 35989 b, TIC 119147875 b, TYC 4978-501-1 b, WISEA J140102.63-023911.1 b
LHS 2842 b, BD-01 2892 b, DO 3431 b, G 64-35 b, GJ 536 b, Gliese 536 b, HIC 68469 b, HIP 68469 b, LFT 1061 b, L 979-36 b, LPM 504 b, LTT 5470 b, 2MASS J14010324-0239180 b, NLTT 35989 b, TIC 119147875 b, TYC 4978-501-1 b, WISEA J140102.63-023911.1 b
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HD 122303 system structure
Exoplanet HD 122303 b orbits star HD 122303, which has lower mass than Sun. It is one of 2 known exoplanets orbiting this star.
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HD 122303 | ||||||||
| HD 122303 b | 0.07 AU | 7.6 M⊕ | 8.7 days | ||||||
| HD 122303 c | 0.16 AU | 7.1 M⊕ | 32.8 days | ||||||
Comparison
When comparing to the Solar system planets, HD 122303 b has 52 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 138.18 | 9.33 | 7.6 | 69.09 | 0.02 | 0.08 | 0.52 | 0.44 |
|
Distance | 0.17 | 0.09 | 0.07 | 0.04 | 0.01 | 0.01 | 0 | 0 |
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Temperature | 1.03 | 0.61 | 1.57 | 2.17 | 2.77 | 3.39 | 5.78 | 6.26 |
Habitability
Habitable zone of the star: 0.25 - 0.36 AU
The planet is too hot to sustain liquid water.