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Exoplanet HAT-P-23 b
Exoplanet HAT-P-23 b orbits star HAT-P-23 that lies 1192 light years away from the Sun.
It weighs about 664.426 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
1192 light years
1192 light years
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HAT-P-23 b
Exoplanet, gas giant
Star: HAT-P-23
Distance from the star: 0.0232 AU
Orbit around star: 1.212884 days
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Orbital period
Orbital period of exoplanet HAT-P-23 b around its star is 1.212884 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: 0.106Basic characteristic
Mass: 664.426 M Earth
| 2.0907 M Jupiter
Exoplanet mass
Exoplanet HAT-P-23 b has 664.426 Earth masses (or 2.0907 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: 15.334 R Earth | 1.4 R Jupiter
Density: 1016 kg/m3 | 18.43 % Earth
Year of discovery: 2010 (transit)Advertisement
HAT-P-23 system structure
Exoplanet HAT-P-23 b orbits star HAT-P-23, which has bigger mass than Sun. It is the only known exoplanet orbiting this star
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HAT-P-23 | ||||||||
| HAT-P-23 b | 0.02 AU | 664.4 M⊕ | 15.3 R⊕ | 1.2 days | |||||
Comparison
When comparing to the Solar system planets, HAT-P-23 b has 2.09 times the mass of Jupiter and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 12080.47 | 815.25 | 664.43 | 6040.24 | 2.09 | 6.98 | 45.51 | 38.63 |
|
Size | 40.05 | 16.14 | 15.33 | 28.93 | 1.37 | 1.69 | 3.83 | 4.04 |
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Density | 0.19 | 0.19 | 0.18 | 0.25 | 0.82 | 1.46 | 0.81 | 0.59 |
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Distance | 0.06 | 0.03 | 0.02 | 0.02 | 0 | 0 | 0 | 0 |
Habitability
Habitable zone of the star: 1.5 - 2.2 AU
The planet is too hot to sustain liquid water.