passed behind its star — an arrangement called a"secondary eclipse" — they discovered that the planet's dayside temperatures reached a scorching 2,242 degrees Fahrenheit .
Moreover, the team found that GJ 1252 b has a surface pressure of no more than 10 bar, which indicates that its atmosphere — if it exists — must be substantially thinner than that ofThe astronomers calculated that on GJ 1252 b, an even atmosphere thick enough to cause a surface pressure 10 times greater than this would have been stripped from the planet over the course of a million years — much shorter than the exoplanet's estimated lifetime of 3.9 billion years.
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