A Conversation for Gliese 581 C
How did they obtain the information
Traveller in Time Reporting Bugs -o-o- Broken the chain of Pliny -o-o- Hired Started conversation May 4, 2007
Traveller in Time 
reading
"Reads as a good start (to become an Edited Entry).
You could add something about how they obtained the data (prolonged observation, measuring intensity and spectrum of Gliese 581). The other planets in the system.
< F51078?thread=4089548 > 
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How did they obtain the information
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