DISCOVERY OF A ∼250 K BROWN DWARF AT 2 pc FROM THE SUN

@article{Luhman2014DISCOVERYOA,  title={DISCOVERY OF A ∼250 K BROWN DWARF AT 2 pc FROM THE SUN},  author={Kevin L. Luhman},  journal={The Astrophysical Journal Letters},  year={2014},  volume={786},  url={https://api.semanticscholar.org/CorpusID:119102654}}
  • K. Luhman
  • Published21 April 2014
  • Physics
  • The Astrophysical Journal Letters
Through a previous analysis of multi-epoch astrometry from the Wide-field Infrared Survey Explorer (WISE), I identified WISE J085510.83−071442.5 as a new high proper motion object. By combining astrometry from WISE and the Spitzer Space Telescope, I have measured a proper motion of 8.1 ± 0.1″ yr−1 and a parallax of 0.454 ± 0.045″ ( pc) for WISE J085510.83−071442.5, giving it the third highest proper motion and the fourth largest parallax of any known star or brown dwarf. It is also the coldest… 

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