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Exoplanet HD 7449 A b
Exoplanet HD 7449 A b orbits star HD 7449 A that lies 126 light years away from the Sun.
It weighs about 161.497 Earth masses and orbits its star further than Earth orbits Sun.
Sun distance
126 light years
126 light years
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HD 7449 A b
Exoplanet
Star: HD 7449 A
Distance from the star: 2.38 AU
Orbit around star: 1255.5 days
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Orbital period
Orbital period of exoplanet HD 7449 A b around its star is 1255.5 days (or 3.4 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: 0.92Basic characteristic
Mass: 161.497 M Earth
| 0.5082 M Jupiter
Exoplanet mass
Exoplanet HD 7449 A b has 161.497 Earth masses (or 0.5082 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: 2011 (radial velocity)
Other designations of this exoplanet
BD−05 215 b, HIP 5806 b, TYC 4683-883-1 b, 2MASS J01142933-0502504 b
BD−05 215 b, HIP 5806 b, TYC 4683-883-1 b, 2MASS J01142933-0502504 b
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HD 7449 system structure
Exoplanet HD 7449 A b orbits star HD 7449 A, which has bigger mass than Sun. It is the only known exoplanet orbiting this star
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HD 7449 A | ||||||||
| HD 7449 A b | 2.38 AU | 161.5 M⊕ | 1255.5 days | ||||||
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HD 7449 B | 34.7 AU | |||||||
Comparison
When comparing to the Solar system planets, HD 7449 A b has 51 % of mass of Jupiter and it orbits its star a little closer than Jupiter.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 2936.31 | 198.16 | 161.5 | 1468.15 | 0.51 | 1.7 | 11.06 | 9.39 |
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Distance | 6.1 | 3.29 | 2.38 | 1.56 | 0.46 | 0.25 | 0.12 | 0.08 |
Habitability
Habitable zone of the star: 1.1 - 1.6 AU
The planet seems to be close to the outer edge of the habitable zone. It is probably very cold, but environment with higher temperatures might be possible.
The planet is probably a gas giant and has no surface, however life could still be possible on the potential moons orbiting it.