Mu Boötis

The Bayer designation Mu Boötis (μ Boötis / μ Boo) is shared by two star systems, in the constellation Boötes, separated by 109.2″.[1]

Both systems are physically close to each other and have similar proper motions, which at first would suggest they are gravitationally bound, but their abundances of chemical elements are different, confirming that μ1 and μ2 are separate systems. Instead, they may be a close encounter between two binary systems.[2]

  • Mu Bootis (Alkalurops) as seen in a small telescope
    Mu Bootis (Alkalurops) as seen in a small telescope
  • Illustration of Mu1,2 Boötis
    Illustration of Mu1,2 Boötis

References

  1. ^ Mason, Brian D.; et al. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920.
  2. ^ Kiyaeva, O. V.; et al. (November 2014). "The multiple system ADS 9626: A quadruple star or an encounter of two binaries?". Astronomy Reports. 58 (11): 835–848. Bibcode:2014ARep...58..835K. doi:10.1134/S106377291411002X. S2CID 122667185.

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