At a relatively small distance from us, one can find an amazing exoplanet, which even manages to circumvent some stars by the surface temperature. How does she look and who got the title of the hottest planet?
We present to your attention KELT-9 b, found in 2016. This world is in the direction of the constellation Cygnus and is 620 light-years distant from us. It refers to the type of hot Jupiter and rotates at a distance of 4.5 million km from the native star. It takes 1.48 days to rotate on the orbital path.
This is a large world, as it is 2.88 times the massiveness of Jupiter. What about temperature? KELT-9 b has a record high of 4,300 ° C. It is important to understand that with this heating the planet is hotter than the stars of spectral class M and K.
Comparative sizes of KELT-9 b and Jupiter
The native star belongs to the main sequence class with a temperature of 10,170 K. It is believed that the planet KELT-9 b has an extended hydrogen atmosphere, but it is rapidly moving into space. The planet is in a tidal hold and looks at the star on one side. There is an opinion that even molecules are destroyed due to high heating, so a long tail lasts behind the planet, resembling a comet. In addition, on the side turned to the starlight, the molecules decay, and on the opposite side, heavy metals accumulate. Therefore, the daytime half would appear to be orange in observation, while the nighttime one would resemble the surface of a red dwarf.
WASP-33 b through the eyes of an artist
The researchers also recorded the presence of ionized titanium and iron. Perhaps on the night side these elements create clouds that form amazing metallic deposits.
Recall that the previous record for temperature kept the exoplanet WASP-33 b with a figure of 3200 ° C, which is more than 1000 ° C inferior to the current record holder. Surveys also showed that KELT-9 b receives 700 times more X-rays than WASP-33 b. Of course, life in this world could not develop.