WASP-121

WASP-121. also known as CD-38 3220 is a magnitude 10.4 star located approximately 850 light-years away in the constellation Puppis. WASP-121 has a mass and radius similar to the Sun. Its planet WASP-121b orbits around WASP-121 in about 1.27 days. WASP-121b is the first exoplanet found to contain water in an extrasolar planetary stratosphere (i.e., an atmospheric layer in which temperatures increase as the altitude increases).

WASP-121

WASP-121. also known as CD-38 3220 is a magnitude 10.4 star located approximately 850 light-years away in the constellation Puppis. WASP-121 has a mass and radius similar to the Sun. Its planet WASP-121b orbits around WASP-121 in about 1.27 days. WASP-121b is the first exoplanet found to contain water in an extrasolar planetary stratosphere (i.e., an atmospheric layer in which temperatures increase as the altitude increases).