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Transit · 2012

HAT-P-25 b

This world receives 325× the starlight Earth does; a year lasts 3.65 days; the light you see left it 980 years ago.

Opens the PlanetHunt visor at this world · WebGL
Size
1.1 × Jupiter 
A year
3.65 days0.0466 AU
Temperature
909 °C1,182 K

About this world

HAT-P-25 b is a gas giant orbiting HAT-P-25, a yellow, Sun-like star (type G5) 980 light-years from Earth. It is about 1.1 times the size of Jupiter and holds 0.57 Jupiter masses. It completes an orbit every 3.65 days at 0.047 AU from its star, closer than Mercury is to the Sun.

Its equilibrium temperature is about 1,182 K (909 °C): far too hot for liquid water on its surface. At its size it almost certainly keeps a deep envelope of hydrogen and helium.

It was discovered in 2012 by transit with HATNet. A planet crosses its star and dims it by a tiny, periodic fraction.

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