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Exoplanet HD 156668 b
Exoplanet HD 156668 b orbits star HD 156668 that lies 79 light years away from the Sun.
It weighs about 3.1 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
79 light years
79 light years
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HD 156668 b
Exoplanet
Star: HD 156668
Distance from the star: 0.0211 AUBasic characteristic
Mass: 3.1 M Earth
Exoplanet mass
Exoplanet HD 156668 b has 3.1 Earth masses, or 0.21 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
Other designations of this exoplanet
G 181-34 b, BD+29 2979 b, HIC 84607 b, HIP 84607 b, LSPM J1717+2913 b, LTT 15121 b, NLTT 44537 b, 2MASS J17174049+2913378 b, TIC 257715493 b, TYC 2073-136-1 b, WISEA J171740.44+291340.2 b
G 181-34 b, BD+29 2979 b, HIC 84607 b, HIP 84607 b, LSPM J1717+2913 b, LTT 15121 b, NLTT 44537 b, 2MASS J17174049+2913378 b, TIC 257715493 b, TYC 2073-136-1 b, WISEA J171740.44+291340.2 b
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HD 156668 system structure
Exoplanet HD 156668 b orbits star HD 156668, which has lower mass than Sun. It is one of 2 known exoplanets orbiting this star.
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|
HD 156668 | ||||||||
| HD 156668 b | 0.02 AU | 3.1 M⊕ | - | ||||||
| HD 156668 c | 1.57 AU | 31.5 M⊕ | - | ||||||
Comparison
When comparing to the Solar system planets, HD 156668 b has 21 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 56.36 | 3.8 | 3.1 | 28.18 | 0.01 | 0.03 | 0.21 | 0.18 |
|
Distance | 0.05 | 0.03 | 0.02 | 0.01 | 0 | 0 | 0 | 0 |