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Exoplanet HD 17156 b
Exoplanet HD 17156 b orbits star HD 17156 that lies 253 light years away from the Sun.
It weighs about 1036.377 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
253 light years
253 light years
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HD 17156 b
Exoplanet, gas giant
Star: HD 17156
Distance from the star: 0.1632 AU
Orbit around star: 21.21642 days
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Orbital period
Orbital period of exoplanet HD 17156 b around its star is 21.21642 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: 0.6772Basic characteristic
Mass: 1036.377 M Earth
| 3.2611 M Jupiter
Exoplanet mass
Exoplanet HD 17156 b has 1036.377 Earth masses (or 3.2611 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: 12.263 R Earth | 1.1 R Jupiter
Density: 3098 kg/m3 | 56.19 % Earth
Temperature: 888 K | 614.85 °C
Year of discovery: 2007 (radial velocity)
Other designations of this exoplanet
TOI 1573 b, HIP 13192 b, TIC 302773669 b
TOI 1573 b, HIP 13192 b, TIC 302773669 b
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HD 17156 system structure
Exoplanet HD 17156 b orbits star HD 17156, which has bigger mass than Sun. It is the only known exoplanet orbiting this star
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HD 17156 | ||||||||
| HD 17156 b | 0.16 AU | 1036.4 M⊕ | 12.3 R⊕ | 21.2 days | |||||
Comparison
When comparing to the Solar system planets, HD 17156 b has 3.26 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 | 18843.22 | 1271.63 | 1036.38 | 9421.61 | 3.26 | 10.89 | 70.98 | 60.25 |
|
Size | 32.03 | 12.91 | 12.26 | 23.14 | 1.09 | 1.35 | 3.07 | 3.23 |
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Density | 0.57 | 0.59 | 0.56 | 0.76 | 2.49 | 4.45 | 2.46 | 1.79 |
|
Distance | 0.42 | 0.23 | 0.16 | 0.11 | 0.03 | 0.02 | 0.01 | 0.01 |
|
Temperature | 2.02 | 1.2 | 3.08 | 4.27 | 5.45 | 6.68 | 11.38 | 12.33 |
Habitability
Habitable zone of the star: 1.5 - 2.2 AU
The planet is too hot to sustain liquid water.