A planet-hunting satellite has seen one of the most exoplanets ever discovered, with surface temperatures allowing them to turn metals into gas. </p><div><p>The European Space Agency (ESA) Characterizing Exoplanet Satellite (CHEOPS) spied a highly exoplanet - named WASP-189b - some 326 light years from Earth.
Classified as so-called ‘hot jupiters’, the surface temperature of the planet reaches 3,200 ° C (5,792 ° F). While nearly half the surface temperature of our Sun (6,000 ° C or 10,832 ° F), it is still one of the most extreme planets discovered by ESA or mankind in general.
Roughly 1.6 times the size of Jupiter, WASP-189b boasts an orbit of just 2.7 days around its star, with permanent days and nights on opposite sides of the planet.
“It takes less than three days to orbit its star, and it is 20 times closer than the Sun to the Earth.” Says astronomer Monica Lendl of the University of Geneva in Switzerland.
The planet’s host star is known as HD 133112 and is about 2,000 ° C (3,600 ° F) warmer than our Sun, making it one of the hottest stars yet to be discovered. There is a system of planets around it. And this star is rotating so fast, it moves out along the equator.
The astronomical investigative planets of the space agency were able to see the planet disappear from behind its star and then pass in front of it. This enabled him to explore many features of the planet, including its brightness, temperature, shape and size.
“Only a handful of planets are known to exist around this hot star, and the system is the brightest ever” Explained Lendl. “WASP-189b is also the brightest hot Jupiter we can observe as it passes through the front or back of its star, making the whole system really complicated.”
This discovery further proves CHEOPS capabilities, measuring the brightness of distance celestial objects with incredible accuracy.
The satellite will now gaze at hundreds of exoplanets of its new, non-world as it classifies super-Earth into Neptune-sized planets that may one day be considered candidates for colonization.
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