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Exoplanet TOI 2015 b
Exoplanet TOI 2015 b orbits star TOI 2015 that lies 154 light years away from the Sun.
It weighs about 16.4 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
154 light years
154 light years
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TOI 2015 b
Exoplanet, sub-neptune
Star: TOI 2015
Distance from the star: 0.0301 AU
Orbit around star: 3.348968 days
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Orbital period
Orbital period of exoplanet TOI 2015 b around its star is 3.348968 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: 16.4 M Earth
Exoplanet mass
Exoplanet TOI 2015 b has 16.4 Earth masses, or 0.95 times the mass of Neptune.
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: 3.39 R Earth | 0.3 R Jupiter
Density: 2321 kg/m3 | 42.10 % Earth
Year of discovery: 2023 (transit)
Other designations of this exoplanet
2MASS J15283191+2721388 b, UCAC4 587-051672 b, TIC 368287008 b, WISE J152831.87+272139.6 b
2MASS J15283191+2721388 b, UCAC4 587-051672 b, TIC 368287008 b, WISE J152831.87+272139.6 b
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TOI 2015 system structure
Exoplanet TOI 2015 b orbits star TOI 2015, which has lower mass than Sun. It is one of 2 known exoplanets orbiting this star.
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TOI 2015 | ||||||||
| TOI 2015 b | 0.03 AU | 16.4 M⊕ | 3.4 R⊕ | 3.3 days | |||||
| TOI 2015 c | 0.04 AU | 8.9 M⊕ | 5.6 days | ||||||
Comparison
When comparing to the Solar system planets, TOI 2015 b has 95 % of mass of Neptune and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 298.18 | 20.12 | 16.4 | 149.09 | 0.05 | 0.17 | 1.12 | 0.95 |
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Size | 8.85 | 3.57 | 3.39 | 6.4 | 0.3 | 0.37 | 0.85 | 0.89 |
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Density | 0.43 | 0.44 | 0.42 | 0.57 | 1.87 | 3.33 | 1.85 | 1.34 |
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Distance | 0.08 | 0.04 | 0.03 | 0.02 | 0.01 | 0 | 0 | 0 |
Habitability
Habitable zone of the star: 0.06 - 0.09 AU
The planet's orbit is close to hotter edge of the habitable zone of its star.
The planet is bigger than Earth and smaller than Neptune. Its average density 2321 kg/m3 points to a hot gas planet.