The Solar Neighborhood. XI. The Trigonometric Parallax of SCR 1845-6357

Niall R. Deacon, Nigel C. Hambly, Todd J. Henry, John P. Subasavage, Misty A. Brown, Wei-Chun Jao

Research output: Contribution to journalArticlepeer-review

Abstract

We present a trigonometric parallax for the nearby star SCR 1845-6357, an extremely red, high proper motion object discovered by Hambly et al. and identified via accurate photoelectric photometry and spectroscopy to be an M8.5 dwarf with a photometric parallax of 4.6+/-0.8 pc by Henry et al. Using methods similar to those described in Deacon & Hambly, we have derived a full astrometric solution from SuperCOSMOS scans of eight survey and nonsurvey Schmidt photographs held in the United Kingdom Schmidt Telescope Unit plate library. We calculate the trigonometric parallax to be π=282+/-23 mas, yielding a distance of 3.5+/-0.3 pc, which implies an absolute Ks magnitude of 10.79. This distance calculation places SCR 1845-6357 as the 16th closest stellar system to the Sun.
Original languageEnglish
Pages (from-to)409-412
JournalAstronomical Journal
Volume129
Issue number1
DOIs
Publication statusPublished - 1 Jan 2005

Keywords

  • Galaxy: Solar Neighborhood
  • Stars: Distances
  • Stars: Late-Type
  • Stars: Low-Mass
  • Brown Dwarfs

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