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Exoplanet TOI-1243 b
Exoplanet TOI-1243 b orbits star TOI-1243 that lies 141 light years away from the Sun.
It weighs about 7.7 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
141 light years
141 light years
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TOI-1243 b
Exoplanet, sub-neptune
Star: TOI-1243
Orbit around star: 4.659477 days
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Orbital period
Orbital period of exoplanet TOI-1243 b around its star is 4.659477 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: 7.7 M Earth
Exoplanet mass
Exoplanet TOI-1243 b has 7.7 Earth masses, or 0.53 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: 2.33 R Earth | 0.2 R Jupiter
Density: 3356 kg/m3 | 60.87 % Earth
Temperature: 450 K | 176.85 °C
Year of discovery: 2026 (transit)
Other designations of this exoplanet
LSPM J0902+7138 b
LSPM J0902+7138 b
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TOI-1243 system structure
Exoplanet TOI-1243 b orbits star TOI-1243, which has lower mass than Sun. It is the only known exoplanet orbiting this star
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TOI-1243 | ||||||||
| TOI-1243 b | n/a | 7.7 M⊕ | 2.3 R⊕ | 4.7 days | |||||
Comparison
When comparing to the Solar system planets, TOI-1243 b has 53 % of mass of Uranus
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 140 | 9.45 | 7.7 | 70 | 0.02 | 0.08 | 0.53 | 0.45 |
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Size | 6.09 | 2.45 | 2.33 | 4.4 | 0.21 | 0.26 | 0.58 | 0.61 |
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Density | 0.62 | 0.64 | 0.61 | 0.82 | 2.7 | 4.82 | 2.67 | 1.94 |
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Temperature | 1.02 | 0.61 | 1.56 | 2.16 | 2.76 | 3.38 | 5.77 | 6.25 |