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Exoplanet TOI-1685 b
Exoplanet TOI-1685 b orbits star TOI-1685 that lies 123 light years away from the Sun.
It weighs about 3.03 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
123 light years
123 light years
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TOI-1685 b
Exoplanet, lava planet, ultra-short period
Star: TOI-1685
Distance from the star: 0.01138 AU
Orbit around star: 0.668139 days
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Orbital period
Orbital period of exoplanet TOI-1685 b around its star is 0.668139 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: 3.03 M Earth
Exoplanet mass
Exoplanet TOI-1685 b has 3.03 Earth masses, or 0.21 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: 1.37 R Earth | 0.1 R Jupiter
Density: 6497 kg/m3 | 117.85 % Earth
Temperature: 980 K | 706.85 °C
Year of discovery: 2021 (transit)
Other designations of this exoplanet
2MASS J04342248+4302148 b, TIC 28900646 b
2MASS J04342248+4302148 b, TIC 28900646 b
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TOI-1685 system structure
Exoplanet TOI-1685 b orbits star TOI-1685, which has lower mass than Sun. It is one of 2 known exoplanets orbiting this star.
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TOI-1685 | ||||||||
| TOI-1685 c | n/a | 9.2 M⊕ | 9 days | ||||||
| TOI-1685 b | 0.01 AU | 3 M⊕ | 1.4 R⊕ | 0.7 days | |||||
Comparison
When comparing to the Solar system planets, TOI-1685 b has 21 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 55.09 | 3.72 | 3.03 | 27.55 | 0.01 | 0.03 | 0.21 | 0.18 |
|
Size | 3.58 | 1.44 | 1.37 | 2.58 | 0.12 | 0.15 | 0.34 | 0.36 |
|
Density | 1.2 | 1.24 | 1.18 | 1.59 | 5.22 | 9.33 | 5.17 | 3.76 |
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Distance | 0.03 | 0.02 | 0.01 | 0.01 | 0 | 0 | 0 | 0 |
|
Temperature | 2.23 | 1.33 | 3.4 | 4.71 | 6.01 | 7.37 | 12.56 | 13.61 |
Habitability
Habitable zone of the star: 0.17 - 0.24 AU
The planet is too hot to sustain liquid water.
News from this star system
28. 09 2021
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