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Exoplanet TOI 858 B b
Exoplanet TOI 858 B b orbits star TOI 858 B that lies 821 light years away from the Sun.
It weighs about 349.698 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
821 light years
821 light years
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TOI 858 B b
Exoplanet, gas giant
Star: TOI 858 B
Distance from the star: 0.04435 AU
Orbit around star: 3.279717 days
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Orbital period
Orbital period of exoplanet TOI 858 B b around its star is 3.279717 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: 349.698 M Earth
| 1.1004 M Jupiter
Exoplanet mass
Exoplanet TOI 858 B b has 349.698 Earth masses (or 1.1004 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: 14.067 R Earth | 1.3 R Jupiter
Density: 693 kg/m3 | 12.57 % Earth
Temperature: 1529 K | 1255.85 °C
Year of discovery: 2023 (transit)Advertisement
TOI 858 system structure
Exoplanet TOI 858 B b orbits star TOI 858 B, which has much lower mass than Sun. It is the only known exoplanet orbiting this star
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TOI 858 A | ||||||||
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TOI 858 B | ||||||||
| TOI 858 B b | 0.04 AU | 349.7 M⊕ | 14.1 R⊕ | 3.3 days | |||||
Comparison
When comparing to the Solar system planets, TOI 858 B b has 1.1 times the mass of Jupiter and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 6358.15 | 429.08 | 349.7 | 3179.07 | 1.1 | 3.67 | 23.95 | 20.33 |
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Size | 36.74 | 14.81 | 14.07 | 26.54 | 1.25 | 1.55 | 3.52 | 3.7 |
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Density | 0.13 | 0.13 | 0.13 | 0.17 | 0.56 | 0.99 | 0.55 | 0.4 |
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Distance | 0.11 | 0.06 | 0.04 | 0.03 | 0.01 | 0 | 0 | 0 |
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Temperature | 3.48 | 2.07 | 5.31 | 7.35 | 9.38 | 11.5 | 19.6 | 21.24 |
Habitability
Habitable zone of the star: 1.5 - 2.1 AU
The planet orbits too close to its star and is exposed to extreme temperatures and radiation prohibiting life as we know it.