Astronomy:HD 202772 Ab
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Discovery | |
---|---|
Discovered by | TESS |
Discovery date | 2019 |
Transit | |
Orbital characteristics | |
0.05208 AU | |
Eccentricity | 0.04 |
Orbital period | 3.3 d |
Star | HD 202772 A |
Physical characteristics | |
Mean radius | 1.545 |♃|J}}}}}} |
Mass | 1.017 |♃|J}}}}}} |
Physics | 2,100 K (1,830 °C; 3,320 °F) |
HD 202772 Ab is a hot Jupiter orbiting the brighter component of the visual binary star HD 202772, located in the constellation Capricornus at a distance of about 480 light-years from Earth. The discovery was announced on 5 October 2018. HD 202772 Ab orbits its host star once every 3.3 days. It is an inflated hot Jupiter, and a rare example of hot Jupiters around evolved stars. It is also one of the most strongly irradiated planets known, with an equilibrium temperature of 2,100 K (1,830 °C; 3,320 °F).[1]
References
- ↑ Wang, Songhu (October 5, 2018). "HD 202772 Ab: A Transiting Hot Jupiter Around A Bright, Mildly Evolved Star In A Visual Binary Discovered By Tess". The Astronomical Journal 157 (2): 51. doi:10.3847/1538-3881/aaf1b7.
![]() | Original source: https://en.wikipedia.org/wiki/HD 202772 Ab.
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