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Exoplanet TOI 122 b
Exoplanet TOI 122 b orbits star TOI 122 that lies 203 light years away from the Sun.
It weighs about 8.8060 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
203 light years
203 light years
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TOI 122 b
Exoplanet, sub-neptune
Star: TOI 122
Distance from the star: 0.0392 AU
Orbit around star: 5.078037 days
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Orbital period
Orbital period of exoplanet TOI 122 b around its star is 5.078037 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: 8.8060 M Earth
Exoplanet mass
Exoplanet TOI 122 b has 8.8060 Earth masses, or 0.6 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: 2.7204 R Earth | 0.2 R Jupiter
Density: 2412 kg/m3 | 43.75 % Earth
Temperature: 431.0 K | 157.85 °C
Year of discovery: 2020 (transit)
Other designations of this exoplanet
TOI-122 b, TOI-122 b
TOI-122 b, TOI-122 b
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Comparison
When comparing to the Solar system planets, TOI 122 b has 60 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 160.11 | 10.8 | 8.81 | 80.05 | 0.03 | 0.09 | 0.6 | 0.51 |
|
Size | 7.1 | 2.86 | 2.72 | 5.13 | 0.24 | 0.3 | 0.68 | 0.72 |
|
Density | 0.45 | 0.46 | 0.44 | 0.59 | 1.94 | 3.46 | 1.92 | 1.4 |
|
Distance | 0.1 | 0.05 | 0.04 | 0.03 | 0.01 | 0 | 0 | 0 |
|
Temperature | 0.98 | 0.58 | 1.5 | 2.07 | 2.64 | 3.24 | 5.53 | 5.99 |
Habitability
Habitable zone of the star: 0.04 - 0.06 AU
The planet is orbiting on the edge of the habitable zone of its star.
The planet is bigger than Earth and smaller than Neptune. Its average density 2412 kg/m3 points to a gas planet. There could be habitable moons in orbit.