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Exoplanet HD 75289 A b
Exoplanet HD 75289 A b orbits star HD 75289 A that lies 95 light years away from the Sun.
It weighs about 144.966 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
95 light years
95 light years
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HD 75289 A b
Exoplanet
Star: HD 75289 A
Distance from the star: 0.047859 AU
Orbit around star: 3.50916 days
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Orbital period
Orbital period of exoplanet HD 75289 A b around its star is 3.50916 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: 144.966 M Earth
| 0.4562 M Jupiter
Exoplanet mass
Exoplanet HD 75289 A b has 144.966 Earth masses (or 0.4562 Jupiter masses).
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: 1260 K | 986.85 °C
Year of discovery: 1999 (radial velocity)
Other designations of this exoplanet
CD−41°4507 b, HD 75289 b, HIC 43177 b, HIP 43177 b, HR 3497 b, SAO 220481 b, WDS J08477-4144 b, 2MASS J08474038-4144119 b, LTT 3243 b, NLTT 20286 b, TIC 181741837 b, TYC 7683-1503-1 b, WDS J08477-4144A b
CD−41°4507 b, HD 75289 b, HIC 43177 b, HIP 43177 b, HR 3497 b, SAO 220481 b, WDS J08477-4144 b, 2MASS J08474038-4144119 b, LTT 3243 b, NLTT 20286 b, TIC 181741837 b, TYC 7683-1503-1 b, WDS J08477-4144A b
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HD 75289 system structure
Exoplanet HD 75289 A b orbits star HD 75289 A, which has bigger mass than Sun. It is the only known exoplanet orbiting this star
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HD 75289 A | ||||||||
| HD 75289 A b | 0.05 AU | 145 M⊕ | 3.5 days | ||||||
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HD 75289 B | 621 AU | |||||||
Comparison
When comparing to the Solar system planets, HD 75289 A b has 1.52 times the mass of Saturn and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 2635.75 | 177.87 | 144.97 | 1317.87 | 0.46 | 1.52 | 9.93 | 8.43 |
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Distance | 0.12 | 0.07 | 0.05 | 0.03 | 0.01 | 0.01 | 0 | 0 |
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Temperature | 2.86 | 1.71 | 4.38 | 6.06 | 7.73 | 9.47 | 16.15 | 17.5 |
Habitability
Habitable zone of the star: 1.4 - 2 AU
The planet is too hot to sustain liquid water.