exoplanet_descriptions/wasp-77_ab.txt Yang (WASP-77 Ab) - Exoplanets
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Info for exoplanet "Yang"


Scientific (actual) data
NameWASP-77 Ab
Planet statusConfirmed
Planet mass1.759
Radius1.21
Orbital period1.36003
Semi major axis0.02345
Orbit eccentricity0.0135
Inclination87.18
Discovered2012
Updated2024-08-02
Omega-88.3
Tzero tr2458410
Lambda angle-8
Impact parameter0.26
K327.2
Temperature (kelvin)1693
Log g3.441
PublicationPublished in a refereed paper
Detection typePrimary Transit
Mass measurement typeRadial Velocity
Radius measurement typePrimary Transit
Alternate namesTOI-398 b, TOI-398 Ab, TOI-398.01
Molecules13CO, CO, H2O
Star nameWASP-77 A
Right ascension37.15°
Declination-7.06°
Mag v11.29
Star metallicity0
Star mass1.002
Star radius0.955
Star sp typeG8V
Star age1
Star temperature5500
Star alternate namesBD-07 436, TOI-398, 2MASS J02283722-0703384
Wikipedia articleWASP-77 Ab

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Fictional info (?)
Suggested nameYang
Planet typeHot gas giant
It has the longest rotation period (445 days) of any planet in its solar system and rotates in the opposite direction to most other planets.

The polar regions are constantly below 144°K (-129°C).

The smooth Borealis basin in the northern hemisphere covers 28 percent of the planet and may be a giant impact feature.
AtmosphereCO,68%
13CO,31%
H2O0.21%
Atmospheric pressure5 bar
artist's rendition
No known satellites
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