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Exoplanet 23 Librae b
Exoplanet 23 Librae b orbits star 23 Librae that lies 85 light years away from the Sun.
It weighs about 505.472 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
85 light years
85 light years
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23 Librae b
Exoplanet, gas giant
Star: 23 Librae
Distance from the star: 0.81 AU
Orbit around star: 258.19 days
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Orbital period
Orbital period of exoplanet 23 Librae b around its star is 258.19 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: 505.472 M Earth
| 1.5905 M Jupiter
Exoplanet mass
Exoplanet 23 Librae b has 505.472 Earth masses (or 1.5905 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
CD−24° 11928 b, Gliese 579.4 b, GJ 579.4 b, HD 134987 b, HIC 74500 b, HIP 74500 b, HR 5657 b, SAO 183275 b
CD−24° 11928 b, Gliese 579.4 b, GJ 579.4 b, HD 134987 b, HIC 74500 b, HIP 74500 b, HR 5657 b, SAO 183275 b
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23 Librae system structure
Exoplanet 23 Librae b orbits star 23 Librae, which has bigger mass than Sun. It is one of 2 known exoplanets orbiting this star.
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23 Librae | ||||||||
| 23 Librae b | 0.81 AU | 505.5 M⊕ | 258.2 days | ||||||
| 23 Librae c | 5.8 AU | 260.7 M⊕ | 5000 days | ||||||
Comparison
When comparing to the Solar system planets, 23 Librae b has 1.59 times the mass of Jupiter and it orbits its star between distances of Venus and Earth from the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 9190.4 | 620.21 | 505.47 | 4595.2 | 1.59 | 5.31 | 34.62 | 29.39 |
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Distance | 2.08 | 1.12 | 0.81 | 0.53 | 0.16 | 0.08 | 0.04 | 0.03 |
Habitability
Habitable zone of the star: 1.3 - 1.9 AU
The planet's orbit is close to hotter edge of the habitable zone of its star.