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Exoplanet HD 42936 A b
Exoplanet HD 42936 A b orbits star HD 42936 A that lies 153 light years away from the Sun.
It weighs about 2.47 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
153 light years
153 light years
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HD 42936 A b
Exoplanet, super-earth
Star: HD 42936 A
Distance from the star: 0.0670 AU
Orbit around star: 6.67 days
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Orbital period
Orbital period of exoplanet HD 42936 A b around its star is 6.67 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
Eccentricity: 0.174Basic characteristic
Mass: 2.47 M Earth
Exoplanet mass
Exoplanet HD 42936 A b has 2.47 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
Year of discovery: 2019 (radial velocity)
Other designations of this exoplanet
DMPP-3 b, CD−72°312 b, CPD−72°451 b, GC 7845 b, HD 42936 b, HIP 28941 b, SAO 256269 b
DMPP-3 b, CD−72°312 b, CPD−72°451 b, GC 7845 b, HD 42936 b, HIP 28941 b, SAO 256269 b
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HD 42936 system structure
Exoplanet HD 42936 A b orbits star HD 42936 A, which has lower mass than Sun. It is the only known exoplanet orbiting this star
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HD 42936 A | ||||||||
| HD 42936 A b | 0.07 AU | 2.5 M⊕ | 6.7 days | ||||||
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HD 42936 B | 1.139 AU | |||||||
Comparison
When comparing to the Solar system planets, HD 42936 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 | 44.91 | 3.03 | 2.47 | 22.45 | 0.01 | 0.03 | 0.17 | 0.14 |
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Distance | 0.17 | 0.09 | 0.07 | 0.04 | 0.01 | 0.01 | 0 | 0 |
Habitability
Habitable zone of the star: 57 - 82.2 AU
The planet is too hot to sustain liquid water.
The planet has mass comparable to Earth.