The coldest star to date

A brown dwarf star belonging to a double system and having an atmospheric temperature of about 100 ° C was detected by researchers thanks to observations made with telescopes of the European Southern Observatory.

The star CFBDSIR1458 + 10B is extremely cold for the surface of a star. It’s so cold that it’s on the border that shares the little cold stars and the big hot planets. In fact, this star is closer to the planets of the solar system than any other star currently imaged (stars, brown dwarfs or exoplanets).

The celestial object has a mass between 5 and 20 times that of Jupiter and a temperature of 370 K, which corresponds to the temperature of boiling water on Earth.

About 75 light-years separate the stellar pair from the Earth. Astrophysicists now want to determine its properties and begin to trace its orbit around the other star, CFBDSIR1458 + 10A.

About 75 light-years separate the stellar pair from the Earth. Astrophysicists now want to determine its properties and begin to trace its orbit around the other star, CFBDSIR1458 + 10A.

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