At: http://en.wikipedia.org/wiki/Talk:Gliese_581_c#Not_Known_To_Transit_-_Source.3F You asked about how we know what Gliese 581 c is like.

Here's my explanation for how it works. Another explanation can be found here: http://en.wikipedia.org/wiki/Methods_of_detecting_extrasolar_planets#Radial_velocity

Astronomers start by making a long series of observations of the star, in this case Gliese 581. Then they look at the images of the star to find discrepencies in it's relative location. They then take these observations and analyze them to locate patterns. A mathematical model allows them to convert the identified pattern to a series of planetary orbits.

In other words it's really complicated.--Marhawkman 23:36, 2 May 2007 (UTC)Reply

Fair use disputed for Image:Orion III.jpg edit

 

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User notice: Blank edit

Regarding edits made during September 16 2007 (UTC) edit

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June 2010 edit

  Please do not add original research or novel syntheses of previously published material to our articles as you apparently did to List of terrorist incidents, 2010. Please cite a reliable source for all of your information. Thank you. O Fenian (talk) 15:17, 25 June 2010 (UTC)Reply

  You currently appear to be engaged in an edit war. Note that the three-revert rule prohibits making more than three reversions on a single page within a 24-hour period. Additionally, users who perform several reversions in content disputes may be blocked for edit warring even if they do not technically violate the three-revert rule. When in dispute with another editor you should first try to discuss controversial changes to work towards wording and content that gains a consensus among editors. Should that prove unsuccessful, you are encouraged to seek dispute resolution, and in some cases it may be appropriate to request page protection. If the edit warring continues, you may be blocked from editing without further notice. O Fenian (talk) 16:20, 25 June 2010 (UTC)Reply