NASA’s TESS Delivers New Insights Into an Ultrahot World
KELT-9 b is a gas giant world about 1.8 times bigger than Jupiter, the planet’s dayside temperature is around 7,800 degrees Fahrenheit. Via NASA Goddard
Measurements from NASAs Transiting Exoplanet Survey Satellite (TESS) have enabled astronomers to greatly improve their understanding of the bizarre environment of KELT-9 b, one of the hottest planets known.
Located about 670 light-years away in the constellation Cygnus, KELT-9 b was discovered in 2017 because the planet passed in front of its star for a part of each orbit, an event called a transit. Transits regularly dim the stars light by a small but detectable amount.
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