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Exoplanet HD 20329 b
Exoplanet HD 20329 b orbits star HD 20329 that lies 208 light years away from the Sun.
It weighs about 7.423 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
208 light years
208 light years
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HD 20329 b
Exoplanet, super-earth, ultra-short period
Star: HD 20329
Distance from the star: 0.018 AU
Orbit around star: 0.926118 days
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Orbital period
Orbital period of exoplanet HD 20329 b around its star is 0.926118 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: 7.423 M Earth
Exoplanet mass
Exoplanet HD 20329 b has 7.423 Earth masses, or 0.51 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
Size: 1.719 R Earth | 0.2 R Jupiter
Density: 8057 kg/m3 | 146.15 % Earth
Temperature: 2000 K | 1726.85 °C
Year of discovery: 2022 (transit)
Other designations of this exoplanet
TIC 333657795 b, TYC 1232-690-1 b, LTT 11074 b, HIP 15249 b, 2MASS J03164262+1539260 b, NLTT 10422 b
TIC 333657795 b, TYC 1232-690-1 b, LTT 11074 b, HIP 15249 b, 2MASS J03164262+1539260 b, NLTT 10422 b
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HD 20329 system structure
Exoplanet HD 20329 b orbits star HD 20329, which has much lower mass than Sun. It is the only known exoplanet orbiting this star
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HD 20329 | ||||||||
| HD 20329 b | 0.02 AU | 7.4 M⊕ | 1.7 R⊕ | 0.9 days | |||||
Comparison
When comparing to the Solar system planets, HD 20329 b has 51 % 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 | 134.96 | 9.11 | 7.42 | 67.48 | 0.02 | 0.08 | 0.51 | 0.43 |
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Size | 4.49 | 1.81 | 1.72 | 3.24 | 0.15 | 0.19 | 0.43 | 0.45 |
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Density | 1.49 | 1.54 | 1.46 | 1.98 | 6.48 | 11.57 | 6.41 | 4.66 |
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Distance | 0.05 | 0.02 | 0.02 | 0.01 | 0 | 0 | 0 | 0 |
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Temperature | 4.55 | 2.71 | 6.94 | 9.62 | 12.27 | 15.04 | 25.64 | 27.78 |
Habitability
Habitable zone of the star: 64.4 - 92.7 AU
The planet orbits too close to its star and is exposed to extreme temperatures and radiation prohibiting life as we know it.