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Exoplanet Gliese 687 b
Exoplanet Gliese 687 b orbits star Gliese 687 that lies 15 light years away from the Sun.
It weighs about 17.3 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
15 light years
15 light years
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Gliese 687 b
Exoplanet
Star: Gliese 687
Distance from the star: 0.163 AU
Orbit around star: 38.142 days
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Orbital period
Orbital period of exoplanet Gliese 687 b around its star is 38.142 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: 17.3 M Earth
Exoplanet mass
Exoplanet Gliese 687 b has 17.3 Earth masses, or 1.01 times the mass of Neptune.
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: 2014 (radial velocity)
Other designations of this exoplanet
BD+68 946 b, LHS 450 b, AOe 17415-6 b, LTT 15232 b, SAO 17568 b, GCTP 4029.00 b, HIP 86162 b, STU 10B b, LFT 1364 b, GJ 687 b
BD+68 946 b, LHS 450 b, AOe 17415-6 b, LTT 15232 b, SAO 17568 b, GCTP 4029.00 b, HIP 86162 b, STU 10B b, LFT 1364 b, GJ 687 b
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Gliese 687 system structure
Exoplanet Gliese 687 b orbits star Gliese 687, which has lower mass than Sun. It is one of 2 known exoplanets orbiting this star.
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Gliese 687 | ||||||||
| Gliese 687 b | 0.16 AU (HZ) | 17.3 M⊕ | 38.1 days | ||||||
| Gliese 687 c | 1.17 AU | 14.5 M⊕ | 727.4 days | ||||||
Comparison
When comparing to the Solar system planets, Gliese 687 b has 1.01 times the mass of Neptune and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 314.55 | 21.23 | 17.3 | 157.27 | 0.05 | 0.18 | 1.18 | 1.01 |
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Distance | 0.42 | 0.23 | 0.16 | 0.11 | 0.03 | 0.02 | 0.01 | 0.01 |
Habitability
Habitable zone of the star: 0.14 - 0.2 AU
The planet is orbiting inside the habitable zone of its star.
The planet is a gas giant and has no surface, however life could still be possible in its atmosphere or on the potential moons orbiting the planet.