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Exoplanet TOI 1259 A b
Exoplanet TOI 1259 A b orbits star TOI 1259 A that lies 385 light years away from the Sun.
It weighs about 140.197 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
385 light years
385 light years
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TOI 1259 A b
Exoplanet
Star: TOI 1259 A
Distance from the star: 0.0407 AU
Orbit around star: 3.477978 days
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Orbital period
Orbital period of exoplanet TOI 1259 A b around its star is 3.477978 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: 140.197 M Earth
| 0.4411 M Jupiter
Exoplanet mass
Exoplanet TOI 1259 A b has 140.197 Earth masses (or 0.4411 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: 11.455 R Earth | 1 R Jupiter
Density: 514 kg/m3 | 9.32 % Earth
Temperature: 963 K | 689.85 °C
Year of discovery: 2021 (transit)
Other designations of this exoplanet
TIC 288735205 b, b
TIC 288735205 b, b
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TOI 1259 system structure
Exoplanet TOI 1259 A b orbits star TOI 1259 A, which has lower mass than Sun. It is the only known exoplanet orbiting this star
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TOI 1259 A | ||||||||
| TOI 1259 A b | 0.04 AU | 140.2 M⊕ | 11.5 R⊕ | 3.5 days | |||||
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TOI 1259 B | 13.9 AU | |||||||
Comparison
When comparing to the Solar system planets, TOI 1259 A b has 1.47 times the mass of Saturn and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 2549.04 | 172.02 | 140.2 | 1274.52 | 0.44 | 1.47 | 9.6 | 8.15 |
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Size | 29.92 | 12.06 | 11.46 | 21.61 | 1.02 | 1.26 | 2.86 | 3.01 |
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Density | 0.1 | 0.1 | 0.09 | 0.13 | 0.41 | 0.74 | 0.41 | 0.3 |
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Distance | 0.1 | 0.06 | 0.04 | 0.03 | 0.01 | 0 | 0 | 0 |
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Temperature | 2.19 | 1.31 | 3.34 | 4.63 | 5.91 | 7.24 | 12.35 | 13.38 |
Habitability
Habitable zone of the star: 0.55 - 0.79 AU
The planet is too hot to sustain liquid water.