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Transit · 2012

WASP-49 b

This world receives 615× the starlight Earth does; a year lasts 2.78 days; the light you see left it 635 years ago.

Opens the PlanetHunt visor at this world · WebGL
Size
1.1 × Jupiter 
A year
2.78 days0.0379 AU
Temperature
1,127 °C1,400 K

About this world

WASP-49 b is a gas giant orbiting WASP-49, a yellow, Sun-like star (type G6V) 635 light-years from Earth. It is about 1.1 times the size of Jupiter and holds 0.37 Jupiter masses. It completes an orbit every 2.78 days at 0.038 AU from its star, closer than Mercury is to the Sun.

Its equilibrium temperature is about 1,400 K (1,127 °C): far too hot for liquid water on its surface. At its size it almost certainly keeps a deep envelope of hydrogen and helium. Its atmosphere has already been studied: 3 spectroscopic observations.

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

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