‘Rogue planet’ spotted 100 light-years away

BBC
November 14, 2012

Recent finds of such planets have suggested that they may be common, but candidates have eluded close study.

The proximity of the new rogue planet has allowed astronomers to guess its age: a comparatively young 50-120 million years old.

The planet, dubbed CFBDSIR2149-0403, is outlined in a paper posted online to appear in Astronomy and Astrophysics.

Rogue planets are believed to form in one of two ways: in much the same way as planets bound to stars, coalescing from a disk of dust and debris but then thrown out of a host star’s orbit, or in much the same way as stars but never reaching a full star’s mass.

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This article was posted: Wednesday, November 14, 2012 at 11:01 am

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