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Exoplanet HD 140901 A b
Exoplanet HD 140901 A b orbits star HD 140901 A that lies 50 light years away from the Sun.
It weighs about 15.895 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
50 light years
50 light years
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HD 140901 A b
Exoplanet
Star: HD 140901 A
Distance from the star: 0.085 AU
Orbit around star: 9.02378 days
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Orbital period
Orbital period of exoplanet HD 140901 A b around its star is 9.02378 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
Eccentricity: 0.47Basic characteristic
Mass: 15.895 M Earth
Exoplanet mass
Exoplanet HD 140901 A b has 15.895 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
Year of discovery: 2022 (transit)
Other designations of this exoplanet
HR 5864 b, HIP 77358 b, SAO 206976 b, CD-37 10500 b, Gliese 599 b, GJ 599 b
HR 5864 b, HIP 77358 b, SAO 206976 b, CD-37 10500 b, Gliese 599 b, GJ 599 b
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HD 140901 system structure
Exoplanet HD 140901 A b orbits star HD 140901 A, which has lower mass than Sun. It is one of 2 known exoplanets orbiting this star.
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HD 140901 A | ||||||||
| HD 140901 A b | 0.09 AU | 15.9 M⊕ | 9 days | ||||||
| HD 140901 A c | 7.42 AU | 1997.7 M⊕ | 7417.5 days | ||||||
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HD 140901 B | ||||||||
Comparison
When comparing to the Solar system planets, HD 140901 A b has 92 % of mass of Neptune and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 289 | 19.5 | 15.9 | 144.5 | 0.05 | 0.17 | 1.09 | 0.92 |
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Distance | 0.22 | 0.12 | 0.09 | 0.06 | 0.02 | 0.01 | 0 | 0 |
Habitability
Habitable zone of the star: 0.97 - 1.4 AU
The planet is too hot to sustain liquid water.