Gliese 581 Planetary System
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| Distance to earth | 20 light years |
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| Date of Reg. | |
| Date of Upd. | |
| ID | 4038520 |
About Gliese 581 Planetary System
The Gliese 581 planetary system now has four known planets, with masses of about 1.9 (planet e, left in the foreground), 16 (planet b, nearest to the star), 5 (planet c, centre), and 7 Earth-masses (planet d, with the bluish colour).