Planets are simply named by adding a letter to the host star name. The first planet found orbiting GJ 581 is called GJ 581 b (where A corresponds to the star). The 2nd discovered planet is GJ 581 c, and so on.
Goldilocks Zone or Goldilocks Planet.
Gliese is not a living planet.
Gliese 581 IS the system, D is the planet.
No. g liese 581c is a planet that orbits a star, Gliese 581.
Gliese 581g
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Planet Gliese
3-6. The 3 planet model would have gliese 581 b too hot, gliese 581 c in the habitable zone, and gliese 581 d too cold. The 6 planet model would have gliese 581 e, b, and c too hot, gliese 581 g and d in the habitable zone, and gliese 581 f too cold.
Gliese is a new planet discovered in April 27, 2007 but told in 2010.
20 light years
gliese 581 is a star system not a planet however two of the 3 planets there are debatable that one of them could support life
Gliese 581g lies in a zone called "the Goldilocks zone" or habitable zone [See related question]. It's an area in a planets orbit, where liquid water is likely to occur and thus harbour life. It's not too hot or too cold. (As in the porridge) It can also refer to a planet that is close to the size of the Earth.