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Exoplanet G 9-40 b
Exoplanet G 9-40 b orbits star G 9-40 that lies 91 light years away from the Sun.
It weighs about 4.133 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
91 light years
91 light years
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G 9-40 b
Exoplanet, super-earth
Star: G 9-40
Distance from the star: 0.0418 AU
Orbit around star: 5.745998 days
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Orbital period
Orbital period of exoplanet G 9-40 b around its star is 5.745998 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: 4.133 M Earth
Exoplanet mass
Exoplanet G 9-40 b has 4.133 Earth masses, or 0.28 times the mass of Uranus.
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
Size: 1.906 R Earth | 0.2 R Jupiter
Density: 3291 kg/m3 | 59.70 % Earth
Temperature: 440 K | 166.85 °C
Year of discovery: 2019 (transit)
Other designations of this exoplanet
2MASS J08585232+2104344 b, G 47-17 b, G 41-13 b, K2-313 b, NLTT 20661 b, TIC 203214081 b, WISEA J085852.46+210430.8 b
2MASS J08585232+2104344 b, G 47-17 b, G 41-13 b, K2-313 b, NLTT 20661 b, TIC 203214081 b, WISEA J085852.46+210430.8 b
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Comparison
When comparing to the Solar system planets, G 9-40 b has 28 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 75.15 | 5.07 | 4.13 | 37.57 | 0.01 | 0.04 | 0.28 | 0.24 |
|
Size | 4.98 | 2.01 | 1.91 | 3.6 | 0.17 | 0.21 | 0.48 | 0.5 |
|
Density | 0.61 | 0.63 | 0.6 | 0.81 | 2.65 | 4.73 | 2.62 | 1.9 |
|
Distance | 0.11 | 0.06 | 0.04 | 0.03 | 0.01 | 0 | 0 | 0 |
|
Temperature | 1 | 0.6 | 1.53 | 2.12 | 2.7 | 3.31 | 5.64 | 6.11 |
Habitability
Habitable zone of the star: 0.1 - 0.15 AU
The planet is too hot to sustain liquid water.