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Exoplanet HAT-P-11 b
Exoplanet HAT-P-11 b orbits star HAT-P-11 that lies 124 light years away from the Sun.
It weighs about 27.74 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
124 light years
124 light years
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HAT-P-11 b
Exoplanet
Star: HAT-P-11
Distance from the star: 0.053 AU
Orbit around star: 4.887802 days
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Orbital period
Orbital period of exoplanet HAT-P-11 b around its star is 4.887802 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: 0.2644Basic characteristic
Mass: 27.74 M Earth
Exoplanet mass
Exoplanet HAT-P-11 b has 27.74 Earth masses, or 1.61 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
Size: 4.36 R Earth | 0.4 R Jupiter
Density: 1845 kg/m3 | 33.47 % Earth
Temperature: 787 K | 513.85 °C
Year of discovery: 2009 (transit)
Other designations of this exoplanet
2MASS 19505021+4804508 b, GSC 03561-02092 b, BD+47°2936 b, HIC 97657 b, HIP 97657 b, NLTT 48335 b, KOI-3 b, KIC 10748390 b
2MASS 19505021+4804508 b, GSC 03561-02092 b, BD+47°2936 b, HIC 97657 b, HIP 97657 b, NLTT 48335 b, KOI-3 b, KIC 10748390 b
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HAT-P-11 system structure
Exoplanet HAT-P-11 b orbits star HAT-P-11, which has lower mass than Sun. It is one of 2 known exoplanets orbiting this star.
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HAT-P-11 | ||||||||
| HAT-P-11 b | 0.05 AU | 27.7 M⊕ | 4.4 R⊕ | 4.9 days | |||||
| HAT-P-11 c | 4.13 AU | 731.2 M⊕ | 3397 days | ||||||
Comparison
When comparing to the Solar system planets, HAT-P-11 b has 1.61 times the mass of Neptune and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 504.36 | 34.04 | 27.74 | 252.18 | 0.09 | 0.29 | 1.9 | 1.61 |
|
Size | 11.39 | 4.59 | 4.36 | 8.23 | 0.39 | 0.48 | 1.09 | 1.15 |
|
Density | 0.34 | 0.35 | 0.33 | 0.45 | 1.48 | 2.65 | 1.47 | 1.07 |
|
Distance | 0.14 | 0.07 | 0.05 | 0.03 | 0.01 | 0.01 | 0 | 0 |
|
Temperature | 1.79 | 1.07 | 2.73 | 3.78 | 4.83 | 5.92 | 10.09 | 10.93 |
Habitability
Habitable zone of the star: 0.59 - 0.85 AU
The planet is too hot to sustain liquid water.
News from this star system
22. 12 2021
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