Zeta2 Muscae

From Wikipedia, the free encyclopedia
Jump to: navigation, search


Zeta2 Muscae
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Musca
Right ascension 12h 22m 07.34002s [1]
Declination −67° 19′ 5871″ [1]
Spectral type A5V

Zeta2 Muscae is a star in the constellation Musca. Its apparent magnitude is 5.16. It is a white main sequence star of spectral type A5V around 330 light-years distant from Earth.[1] Like several other stars in the constellation, it is a member of the Lower Centaurus Crux subgroup of the Scorpius–Centaurus Association, a group of predominantly hot blue-white stars that share a common origin and proper motion across the galaxy.[2] It is part of a triple star system with faint companions at 0.5 and 32.4 arc seconds distance.[3] The former is an infrared source,[4] the latter has a visual magnitude of 10.7.[5]

References[edit]

  1. ^ a b c "HR 4703 – Star in Double System". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 25 December 2013. 
  2. ^ de Zeeuw, P.T., Hoogerwerf, R., de Bruijne, J.H.J., Brown, A.G.A., & Blaauw, A. (1999). "A Hipparcos Census of Nearby OB Associations". Astronomical Journal 117 (1): 354–399. arXiv:astro-ph/9809227. Bibcode:1999AJ....117..354D. doi:10.1086/300682. 
  3. ^ Chen, Christine H.; Pecaut, Mark; Mamajek, Eric E.; Su, Kate Y. L.; Bitner, Martin (2012). "A Spitzer MIPS Study of 2.5-2.0 M☉ Stars in Scorpius-Centaurus". The Astrophysical Journal 756 (2): 133–57. arXiv:1207.3415. Bibcode:2012ApJ...756..133C. doi:10.1088/0004-637x/756/2/133. 
  4. ^ "IRAS 12193-6714 – Star". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 25 December 2013. 
  5. ^ "CPD-66 1747B – Star in Double System". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 25 December 2013.