Orbits of Planets in Gliese 581 System
February 21, 2011
The orbits of planets in the Gliese 581 system are compared to those of our own solar system. The Gliese 581 star has about 30 percent the mass of our sun, and the outermost planet is closer to its star than the Earth is to the sun. The 4th planet, G, is a planet that could sustain life.
Topics: Environment, Human Interest, Terrestrial planets, Libra constellation, Extrasolar planets, Technology Internet, Entertainment Culture, Gliese 581 d, Gliese 581 b, Gliese 581, Aquarius constellation, Planetary systems