CFBDSIR 2149-0403

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Versione delle 11:13, 13 giu 2013, autore: Marc.soave (Discussione | contributi)
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Rappresentazione artistica del pianeta vagabondo (fonte: L. Calçada, P. Delorme, Nick Risinger, R. Saito, European Southern Observatory/VVV Consortium).

CFBDSIR 2149-0403 (full designation CFBDSIR J214947.2-040308.9) is a brown dwarf and probable rogue planet,[1] likely (with 87% probability) part of the AB Doradus moving group as indicated by its position and proper motion.[1] Its age is estimated to be between 20 and 200 million years.



CFBDSIR 2149-0403 has been discovered by the Canada-France Brown Dwarfs Survey, a near infrared sky survey, and confirmed by WISE data.


As of November 2012, this rogue planet is the closest that has ever been spotted.[2] If the object belongs to the AB Doradus moving group then its distance is estimated to be 40±4 parsecs (130±13 light years) from Earth; other possible estimates range from 25 to 50 parsecs.


Spectroscopy observations have found absorption by gaseous methane and water.


  1. 1,0 1,1 Template:Cite web
  2. Template:Cite web

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