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Exoplanet WASP-77 A b
Exoplanet WASP-77 A b orbits star WASP-77 A that lies 344 light years away from the Sun.
It weighs about 559.516 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
344 light years
344 light years
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WASP-77 A b
Exoplanet, gas giant
Star: WASP-77 A
Distance from the star: 0.024 AU
Orbit around star: 1.360028 days
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Orbital period
Orbital period of exoplanet WASP-77 A b around its star is 1.360028 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: 559.516 M Earth
| 1.7606 M Jupiter
Exoplanet mass
Exoplanet WASP-77 A b has 559.516 Earth masses (or 1.7606 Jupiter masses).
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: 13.563 R Earth | 1.2 R Jupiter
Density: 1236 kg/m3 | 22.42 % Earth
Temperature: 1715 K | 1441.85 °C
Year of discovery: 2012 (transit)
Other designations of this exoplanet
BD-07 436A b, A 447A b, SDSS J022837.27-070338.3 b, TOI-398 b, TYC 4697-201-1 b, WDS J02286-0704A b, 2MASS J02283722-0703384 b
BD-07 436A b, A 447A b, SDSS J022837.27-070338.3 b, TOI-398 b, TYC 4697-201-1 b, WDS J02286-0704A b, 2MASS J02283722-0703384 b
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WASP-77 system structure
Exoplanet WASP-77 A b orbits star WASP-77 A, which has bigger mass than Sun. It is the only known exoplanet orbiting this star
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WASP-77 A | ||||||||
| WASP-77 A b | 0.02 AU | 559.5 M⊕ | 13.6 R⊕ | 1.4 days | |||||
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WASP-77 B | ||||||||
Comparison
When comparing to the Solar system planets, WASP-77 A b has 1.76 times the mass of Jupiter and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 10173.02 | 686.52 | 559.52 | 5086.51 | 1.76 | 5.88 | 38.32 | 32.53 |
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Size | 35.42 | 14.28 | 13.56 | 25.59 | 1.21 | 1.49 | 3.39 | 3.57 |
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Density | 0.23 | 0.24 | 0.22 | 0.3 | 0.99 | 1.77 | 0.98 | 0.72 |
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Distance | 0.06 | 0.03 | 0.02 | 0.02 | 0 | 0 | 0 | 0 |
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Temperature | 3.9 | 2.33 | 5.95 | 8.25 | 10.52 | 12.89 | 21.99 | 23.82 |
Habitability
Habitable zone of the star: 0.93 - 1.3 AU
The planet orbits too close to its star and is exposed to extreme temperatures and radiation prohibiting life as we know it.
News from this star system
30. 10 2021
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