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Exoplanet TOI 4666 b
Exoplanet TOI 4666 b orbits star TOI 4666 that lies 503 light years away from the Sun.
It weighs about 222.535 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
503 light years
503 light years
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TOI 4666 b
Exoplanet
Star: TOI 4666
Distance from the star: 0.0333 AU
Orbit around star: 2.908918 days
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Orbital period
Orbital period of exoplanet TOI 4666 b around its star is 2.908918 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: 222.535 M Earth
| 0.7002 M Jupiter
Exoplanet mass
Exoplanet TOI 4666 b has 222.535 Earth masses (or 0.7002 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
Size: 12.442 R Earth | 1.1 R Jupiter
Density: 637 kg/m3 | 11.55 % Earth
Temperature: 713 K | 439.85 °C
Year of discovery: 2025 (transit)
Other designations of this exoplanet
TOI-4666 b
TOI-4666 b
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TOI 4666 system structure
Exoplanet TOI 4666 b orbits star TOI 4666, which has lower mass than Sun. It is the only known exoplanet orbiting this star
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TOI 4666 | ||||||||
| TOI 4666 b | 0.03 AU | 222.5 M⊕ | 12.4 R⊕ | 2.9 days | |||||
Comparison
When comparing to the Solar system planets, TOI 4666 b has 70 % of mass of Jupiter and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 4046.09 | 273.05 | 222.54 | 2023.05 | 0.7 | 2.34 | 15.24 | 12.94 |
|
Size | 32.49 | 13.1 | 12.44 | 23.48 | 1.11 | 1.37 | 3.11 | 3.27 |
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Density | 0.12 | 0.12 | 0.12 | 0.16 | 0.51 | 0.91 | 0.51 | 0.37 |
|
Distance | 0.09 | 0.05 | 0.03 | 0.02 | 0.01 | 0 | 0 | 0 |
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Temperature | 1.62 | 0.97 | 2.48 | 3.43 | 4.37 | 5.36 | 9.14 | 9.9 |
Habitability
Habitable zone of the star: 0.28 - 0.41 AU
The planet is too hot to sustain liquid water.