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→Gliese 581c compared to [[Earth]]: clean up & uniformity
'''Gliese 581c''' is an extrasolar [[planet]] (or [[exoplanet]])orbiting the [[red dwarf star]] [[Gliese 581]]. It appears to be in the circumstellar habitable zone (or [[ecosphere]]), a notional spherical shell of [[outer space|space]] surrounding stars where the surface temperatures of any planets present might maintain liquid water. Liquid water is vital because of its role as the solvent needed for biochemical reactions. As such, Gliese 581 c is one of the first truly "Earthlike" planets discovered outside of the [[Solar System]].
'''Gliese 581c''' is an extrasolar [[planet]] (or [[exoplanet]])orbiting the [[red dwarf star]] [[Gliese 581]]. It appears to be in the circumstellar habitable zone (or [[ecosphere]]), a notional spherical shell of [[outer space|space]] surrounding stars where the surface temperatures of any planets present might maintain liquid water. Liquid water is vital because of its role as the solvent needed for biochemical reactions. As such, Gliese 581 c is one of the first truly "Earthlike" planets discovered outside of the [[Solar System]].
===Gliese 581c compared to [[Earth]]:===
===Gliese 581c compared to [[Earth]]===
*Gliese 581c has a radius 50% larger than the Earth.
*Gliese 581c has a radius 50% larger than the Earth.
*Gliese 581c has a gravitation fieldthat is about 2.2 times stronger than that on Earth.
*Gliese 581c has a gravitation fieldthat is about 2.2 times stronger than that on Earth.
*Gliese 581c is 14 times closer to its star than the Earth is to our Sun.
*Gliese 581c is 14 times closer to its star than the Earth is to our Sun.
*Gliese 581c has an estimated surface temperature between 0 and 40°C, the average surface temperature on Earth is around 15 °C.
*Gliese 581c has an estimated surface temperature between 0 and 40 °C, the average surface temperature on Earth is around 15 °C.
*Gliese 581c is one of three planets so far discovered in the '''Gliese 581 system''', as opposed to the 8 planets in our solar system.
*Gliese 581c is one of three planets so far discovered in the '''Gliese 581 system''', as opposed to the 8 planets in our solar system.