Lonely ‘homeless’ planet found for the first time

Re:Lonely ‘homeless’ planet found for the first time by ichabodcole on Wednesday November 14, 2012 @11:57AM (#4784166)

Would anyone like to explain why this planet would have a temperature of 400C (I was picturing it being really cold)? Is this because of its mass/size, more related to its gaseous composition or both?

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Re:Lonely ‘homeless’ planet found for the first time by rpm4321 on Wednesday November 14, 2012 @12:02PM (#4784198)

It's a brown dwarf: http://en.wikipedia.org/wiki/CFBDSIR2149-0403

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Re:Lonely ‘homeless’ planet found for the first time by wcoenen on Wednesday November 14, 2012 @04:17PM (#4785612)

I think that the news here is that is has been determined that it is not a brown dwarf. See the paper[1] for more details. Though I'm not sure why the distinction between giant planet vs cold tiny star is so important.

[1] http://arxiv.org/abs/1210.0305

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Re:Lonely ‘homeless’ planet found for the first time by scottscanlon on Wednesday November 14, 2012 @03:06PM (#4785234)

ah, thanks for that.

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Re:Lonely ‘homeless’ planet found for the first time by schiffern on Wednesday November 14, 2012 @01:55PM (#4784833)

Compressive heating when gas collapsed into the planet.

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