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Exoplanet HD 221420 b
Exoplanet HD 221420 b orbits star HD 221420 that lies 102 light years away from the Sun.
It weighs about 7280.07 Earth masses and orbits its star further than Earth orbits Sun.
Sun distance
102 light years
102 light years
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HD 221420 b
Exoplanet, brown dwarf
Star: HD 221420
Distance from the star: 10.15 AU
Orbit around star: 10088 days
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Orbital period
Orbital period of exoplanet HD 221420 b around its star is 10088 days (or 27.6 years).
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: 0.14Basic characteristic
Mass: 7280.07 M Earth
| 22.9077 M Jupiter
Exoplanet mass
Exoplanet HD 221420 b has 7280.07 Earth masses (or 22.9077 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
Year of discovery: 2019 (radial velocity)Advertisement
HD 221420 system structure
Exoplanet HD 221420 b orbits star HD 221420, which has bigger mass than Sun. It is the only known exoplanet orbiting this star
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HD 221420 | ||||||||
| HD 221420 b | 10.15 AU | 7280.1 M⊕ | 10088 days | ||||||
Comparison
When comparing to the Solar system planets, HD 221420 b has % of mass of and it orbits its star between distances of Saturn and Uranus from the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 132364.91 | 8932.6 | 7280.07 | 66182.45 | 22.91 | 76.47 | 498.63 | 423.26 |
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Distance | 26.03 | 14.04 | 10.15 | 6.66 | 1.95 | 1.06 | 0.53 | 0.34 |
Habitability
Habitable zone of the star: 2.2 - 3.1 AU
The planet is too cold to sustain liquid water on its surface. It is however possible that there is environment with higher temperatures on some of its potential moons.
The planet is probably a gas giant and has no surface, however life could still be possible on the potential moons orbiting it.