“The most extreme planet ever seen” has a surface temperature of 3,200°C

Astronomers are studying the recently discovered exoplanet WASP-189b, considered, in their own words, “the most extreme planet ever seen”. Researchers from the University of Bern are using the CHEOPS space telescope to conduct a detailed study of the exoplanet. WASP-189b has a massive surface temperature of 3,200°C.

“Based on the observations using CHEOPS, we estimate the temperature of WASP-189b to be 3,200 degrees Celsius. […] Planets like WASP-189b are called ‘ultra-hot Jupiters’. Iron melts at such a high temperature and even becomes gaseous. This object is one of the most extreme planets we know so far”, said Monika Lendl, who led the study.

An artist’s impression of the WASP-189b exoplanet

WASP-189b has one side with permanent day time and the other with permanent night, according to the researchers.

“The WASP-189 system is 322 light-years away and located in the constellation Libra”. The planet is on the orbit of HD 133112, one of the hottest stars with a planetary system, according to Mirror.co.uk.

“WASP-189b is especially interesting because it is a gas giant that orbits very close to its host star. It takes less than 3 days for it to circle its star, and it is 20 times closer to it than Earth is to the Sun.”

Photo & source: Mirror.co.uk