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Transit · 2015

WASP-74 b

This world receives 531× the starlight Earth does; a year lasts 2.14 days; the light you see left it 487 years ago.

Opens the PlanetHunt visor at this world · WebGL
Size
1.4 × Jupiter 
A year
2.14 days0.0344 AU
Temperature
1,592 °C1,865 K

About this world

WASP-74 b is a gas giant orbiting WASP-74, a yellow-white F-type star (type F9) 487 light-years from Earth. It is about 1.4 times the size of Jupiter and holds 0.72 Jupiter masses. It completes an orbit every 2.14 days at 0.034 AU from its star, closer than Mercury is to the Sun.

Its equilibrium temperature is about 1,865 K (1,592 °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: 18 spectroscopic observations.

It was discovered in 2015 by transit with SuperWASP. A planet crosses its star and dims it by a tiny, periodic fraction.

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