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GJ 436, also designated Gliese 436 and HIP 57087, is a red dwarf star 30 light years from Earth in the constellation of Leo. It is orbited by a recently discovered planet.

GJ 436 b is a planet discovered orbiting the star in 2004. It has a similar mass to Neptune, but orbits very close to the star and is believed to be a terrestrial planet, not a gas giant. Its surface temperatures would be very high. It is one of the smallest extrasolar planets ever discovered.

Extrasolar planets Leo constellation

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