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Exoplanet HD 202772 A b
Exoplanet HD 202772 A b orbits star HD 202772 A that lies 531 light years away from the Sun.
It weighs about 323.311 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
531 light years
531 light years
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HD 202772 A b
Exoplanet, gas giant
Star: HD 202772 A
Distance from the star: 0.05208 AU
Orbit around star: 3.3 days
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Orbital period
Orbital period of exoplanet HD 202772 A b around its star is 3.3 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: 0.04Basic characteristic
Mass: 323.311 M Earth
| 1.0173 M Jupiter
Exoplanet mass
Exoplanet HD 202772 A b has 323.311 Earth masses (or 1.0173 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
Size: 17.318 R Earth | 1.5 R Jupiter
Density: 343 kg/m3 | 6.22 % Earth
Temperature: 2132 K | 1858.85 °C
Year of discovery: 2019 (transit)
Other designations of this exoplanet
TOI-123 b, TIC 290131778 b
TOI-123 b, TIC 290131778 b
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HD 202772 system structure
Exoplanet HD 202772 A b orbits star HD 202772 A, which has bigger mass than Sun. It is the only known exoplanet orbiting this star
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HD 202772 A | ||||||||
| HD 202772 A b | 0.05 AU | 323.3 M⊕ | 17.3 R⊕ | 3.3 days | |||||
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HD 202772 B | ||||||||
Comparison
When comparing to the Solar system planets, HD 202772 A b has 1.02 times the mass of Jupiter and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 5878.38 | 396.7 | 323.31 | 2939.19 | 1.02 | 3.4 | 22.14 | 18.8 |
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Size | 45.23 | 18.23 | 17.32 | 32.68 | 1.55 | 1.9 | 4.33 | 4.56 |
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Density | 0.06 | 0.07 | 0.06 | 0.08 | 0.28 | 0.49 | 0.27 | 0.2 |
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Distance | 0.13 | 0.07 | 0.05 | 0.03 | 0.01 | 0.01 | 0 | 0 |
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Temperature | 4.85 | 2.89 | 7.4 | 10.25 | 13.08 | 16.03 | 27.33 | 29.61 |
Habitability
Habitable zone of the star: 3.1 - 4.4 AU
The planet orbits too close to its star and is exposed to extreme temperatures and radiation prohibiting life as we know it.