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Exoplanet LTT 3780 A b
Exoplanet LTT 3780 A b orbits star LTT 3780 A that lies 72 light years away from the Sun.
It weighs about 2.46 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
72 light years
72 light years
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LTT 3780 A b
Exoplanet, super-earth, ultra-short period
Star: LTT 3780 A
Distance from the star: 0.01195 AU
Orbit around star: 0.768379 days
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Orbital period
Orbital period of exoplanet LTT 3780 A b around its star is 0.768379 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: 2.46 M Earth
Exoplanet mass
Exoplanet LTT 3780 A b has 2.46 Earth masses, or 0.17 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: 1.27 R Earth | 0.1 R Jupiter
Density: 6621 kg/m3 | 120.10 % Earth
Temperature: 892 K | 618.85 °C
Year of discovery: 2020 (transit)
Other designations of this exoplanet
G 162-44 b, LP 729-54 b, LTT 3780 b, NLTT 23974 b, TOI-732 b, 2MASS J10183516-1142599 b, WISEA J101834.88-114302.8 b, TIC 36724087 b, LDS 3977A b
G 162-44 b, LP 729-54 b, LTT 3780 b, NLTT 23974 b, TOI-732 b, 2MASS J10183516-1142599 b, WISEA J101834.88-114302.8 b, TIC 36724087 b, LDS 3977A b
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LTT 3780 system structure
Exoplanet LTT 3780 A b orbits star LTT 3780 A, which has lower mass than Sun. It is one of 2 known exoplanets orbiting this star.
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LTT 3780 A | ||||||||
| LTT 3780 A b | 0.01 AU | 2.5 M⊕ | 1.3 R⊕ | 0.8 days | |||||
| LTT 3780 A c | 0.08 AU | 8 M⊕ | 2 R⊕ | 12.3 days | |||||
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LTT 3780 B | ||||||||
Comparison
When comparing to the Solar system planets, LTT 3780 A b has 17 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 44.73 | 3.02 | 2.46 | 22.36 | 0.01 | 0.03 | 0.17 | 0.14 |
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Size | 3.32 | 1.34 | 1.27 | 2.4 | 0.11 | 0.14 | 0.32 | 0.33 |
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Density | 1.23 | 1.26 | 1.2 | 1.63 | 5.32 | 9.51 | 5.26 | 3.83 |
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Distance | 0.03 | 0.02 | 0.01 | 0.01 | 0 | 0 | 0 | 0 |
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Temperature | 2.03 | 1.21 | 3.1 | 4.29 | 5.47 | 6.71 | 11.44 | 12.39 |
Habitability
Habitable zone of the star: 0.11 - 0.16 AU
The planet is too hot to sustain liquid water.
The planet has mass comparable to Earth.