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Exoplanet HD 177830 A b
Exoplanet HD 177830 A b orbits star HD 177830 A that lies 205 light years away from the Sun.
It weighs about 473.681 Earth masses and orbits its star further than Earth orbits Sun.
Sun distance
205 light years
205 light years
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HD 177830 A b
Exoplanet, gas giant
Star: HD 177830 A
Distance from the star: 1.2218 AU
Orbit around star: 406.6 days
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Orbital period
Orbital period of exoplanet HD 177830 A b around its star is 406.6 days (or 1.1 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: 0.009Basic characteristic
Mass: 473.681 M Earth
| 1.4905 M Jupiter
Exoplanet mass
Exoplanet HD 177830 A b has 473.681 Earth masses (or 1.4905 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: 1999 (radial velocity)
Other designations of this exoplanet
BD+25°3719 b, GJ 743.2 b, Gliese 743.2 b, HIC 93746 b, HIP 93746 b, GSC 02126-01196 b, SAO 86791 b
BD+25°3719 b, GJ 743.2 b, Gliese 743.2 b, HIC 93746 b, HIP 93746 b, GSC 02126-01196 b, SAO 86791 b
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HD 177830 system structure
Exoplanet HD 177830 A b orbits star HD 177830 A, which has bigger mass than Sun. It is one of 2 known exoplanets orbiting this star.
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HD 177830 A | ||||||||
| HD 177830 A c | 0.51 AU | 47.7 M⊕ | 110.9 days | ||||||
| HD 177830 A b | 1.22 AU | 473.7 M⊕ | 406.6 days | ||||||
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HD 177830 B | 150 AU | |||||||
Comparison
When comparing to the Solar system planets, HD 177830 A b has 1.49 times the mass of Jupiter and it orbits its star a little closer than Mars.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 8612.38 | 581.2 | 473.68 | 4306.19 | 1.49 | 4.98 | 32.44 | 27.54 |
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Distance | 3.13 | 1.69 | 1.22 | 0.8 | 0.23 | 0.13 | 0.06 | 0.04 |