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Gliese 581 red dwarf star located 20,5 light years from Earth. 6 planets orbit 2 of which in the open area.

It is one of the 100 stars closest to the solar system.The mass of the star is 0,31 compared to the Sun.Planet E has a mass of 1.9 Earth and orbit every 3 days.Planet B It has approximately 17 times the mass of the earth and takes about 5 days to complete an orbit.Planet C it has a mass 4 times the earth and orbit every 12 days.Planet G it has a 3.10 earth mass and orbit every 36 days in the star's open area.Planet D it has a mass of 7.09 earh and orbit every 66 days.Planet F its mass is 7.0 earh and orbit every 433 days.