Tylos
Sign in to saveWASP-121b, formally named Tylos, is an exoplanet orbiting the star WASP-121. WASP-121b is the first exoplanet found with an extrasolar planetary stratosphere (an atmospheric layer in which temperatures increase as the altitude increases) and the first that contains water. WASP-121b is in the constellation Puppis, and is about 858 light-years from Earth.
Key facts
- Planet.name
- WASP-121b / Tylos
- Planet.image
- WASP-121b 01.jpg
- Planet.caption
- Artist's impression of WASP-121b and its host star
- Planet.discoverer
- L. Delrez et al.
- Planet.discovered
- 2015
- Planet.discovery_method
- Transit
- Planet.alt_names
- Tylos
- Planet.apsis
- astron
- Planet.eccentricity
- <0.0032
- Planet.star
- WASP-121
- Planet.surface_grav
- (0.95 g)
- Planet.single_temperature
- ()
via Wikipedia infobox
Article
7 sectionsContents
- Nomenclature
- Characteristics
- Atmospheric composition
- Possible exomoon
- See also
- References
- External links
WASP-121b, formally named Tylos, is an exoplanet orbiting the star WASP-121. WASP-121b is the first exoplanet found with an extrasolar planetary stratosphere (an atmospheric layer in which temperatures increase as the altitude increases) and the first that contains water. WASP-121b is in the constellation Puppis, and is about 858 light-years from Earth.
==Nomenclature== In August 2022, this planet and its host star were included among 20 systems to be named by the third NameExoWorlds project. The approved names, proposed by a team from Bahrain, were announced in June 2023. WASP-121b is named Tylos after the ancient Greek name for Bahrain, and its host star is named Dilmun after the ancient civilization.