Science Fair Project Encyclopedia
GJ 436
(Redirected from Gliese 436)
GJ 436 (Gliese-Jahreiss 436), is a dim 11th magnitude red dwarf star about 30 light years from Earth in the constellation of Leo. It is orbited by a recently discovered planet.
GJ 436 b
The planet, GJ 436 b was discovered orbiting the star in 2004. It has a similar mass to Neptune, but orbits very close to the star and may not be a small gas giant but a very massive terrestrial planet instead. It is one of the smallest extrasolar planets discovered so far. One orbit around the star takes only about 2 days 15.5 hours. The planet's surface temperature is high, but not as high as other planets in similar orbits because the star is so dim and cool.
External links
- SIMBAD entry
- The Extrasolar Planets Encyclopaedia entry
- Scientists discover first of a new class of extrasolar planets – NASA Press Release (August 13, 2004)
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details