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Exoplanet HD 211970 b
Exoplanet HD 211970 b orbits star HD 211970 that lies 43 light years away from the Sun.
It weighs about 13.002 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
43 light years
43 light years
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HD 211970 b
Exoplanet
Star: HD 211970
Distance from the star: 0.143 AU
Orbit around star: 25.2 days
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Orbital period
Orbital period of exoplanet HD 211970 b around its star is 25.2 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
Basic characteristic
Mass: 13.002 M Earth
Exoplanet mass
Exoplanet HD 211970 b has 13.002 Earth masses, or 0.89 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
Year of discovery: 2019 (radial velocity)
Other designations of this exoplanet
LTT 8985 b, CD-55 9073 b, Gliese 1267 b, GJ 1267 b, HIC 110443 b, HIP 110443 b, 2MASS J22221621-5433383 b, NLTT 53616 b, TIC 231704229 b, TYC 8822-210-1 b, WISEA J222215.97-543335.6 b
LTT 8985 b, CD-55 9073 b, Gliese 1267 b, GJ 1267 b, HIC 110443 b, HIP 110443 b, 2MASS J22221621-5433383 b, NLTT 53616 b, TIC 231704229 b, TYC 8822-210-1 b, WISEA J222215.97-543335.6 b
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HD 211970 system structure
Exoplanet HD 211970 b orbits star HD 211970, which has lower mass than Sun. It is the only known exoplanet orbiting this star
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HD 211970 | ||||||||
| HD 211970 b | 0.14 AU | 13 M⊕ | 25.2 days | ||||||
Comparison
When comparing to the Solar system planets, HD 211970 b has 89 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 236.4 | 15.95 | 13 | 118.2 | 0.04 | 0.14 | 0.89 | 0.76 |
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Distance | 0.37 | 0.2 | 0.14 | 0.09 | 0.03 | 0.01 | 0.01 | 0 |
Habitability
Habitable zone of the star: 0.25 - 0.37 AU
The planet's orbit is close to hotter edge of the habitable zone of its star.