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Exoplanet TOI 128 A b
Exoplanet TOI 128 A b orbits star TOI 128 A that lies 223 light years away from the Sun.
It has about 250px of Earth radius and orbits its star much closer than Earth orbits Sun.
Sun distance
223 light years
223 light years
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TOI 128 A b
Exoplanet, sub-neptune
Star: TOI 128 A
Distance from the star: 0.054 AU
Orbit around star: 4.940476 days
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Orbital period
Orbital period of exoplanet TOI 128 A b around its star is 4.940476 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
Size: 2.2205 R Earth | 0.2 R Jupiter
Temperature: 1344.0 K | 1070.85 °C
Year of discovery: 2024 (transit)
Other designations of this exoplanet
HD 36481 b
HD 36481 b
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TOI 128 system structure
Exoplanet TOI 128 A b orbits star TOI 128 A, which has lower mass than Sun. It is the only known exoplanet orbiting this star
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TOI 128 A | ||||||||
| TOI 128 A b | 0.05 AU | 2.2 R⊕ | 4.9 days | ||||||
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TOI 128 B | 150 AU | |||||||
Comparison
When comparing to the Solar system planets, TOI 128 A b orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Size | 5.8 | 2.34 | 2.22 | 4.19 | 0.2 | 0.24 | 0.56 | 0.58 |
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Distance | 0.14 | 0.07 | 0.05 | 0.04 | 0.01 | 0.01 | 0 | 0 |
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Temperature | 3.05 | 1.82 | 4.67 | 6.46 | 8.25 | 10.11 | 17.23 | 18.67 |
Habitability
Habitable zone of the star: 1.4 - 2 AU
The planet orbits too close to its star and is exposed to extreme temperatures and radiation prohibiting life as we know it.