H Scorpii

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H Scorpii
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Scorpius
Right ascension 16h 36m 22.47192s [1]
Declination −35° 15′ 19.1803″ [1]
Apparent magnitude (V) 4.18[1]
Characteristics
Evolutionary stage giant
Spectral type K6III [1]
Astrometry
Radial velocity (Rv) -2.10 ± 0.7[1] km/s
Proper motion (μ) RA: 15.61 ± 0.17[2] mas/yr
Dec.: 11.33 ± 0.14[2] mas/yr
Parallax (π) 9.52 ± 0.16[2] mas
Distance 343 ± 6 ly
(105 ± 2 pc)
Other designations
H Sco, HR 6166, GSC 07353-03153, HD 149447, HIP 81304, SAO 207814

H Scorpii (H Sco) is a star in the constellation Scorpius. Its apparent magnitude is 4.18. It was initially given the Bayer designation Beta Normae by Lacaille but later moved from Norma to Scorpius.

Located around 343 light-years distant, it shines with a luminosity approximately 576 times that of the Sun and has a surface temperature of 4000 K.[3]

References[edit]

  1. ^ a b c d e SIMBAD, HR 6166 (accessed 17 February 2013)
  2. ^ a b c van Leeuwen, F. (2007). "Validation of the New Hipparcos Reduction". Astronomy and Astrophysics. 474 (2): 653–64. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. 
  3. ^ McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society. 427 (1): 343–57. arXiv:1208.2037Freely accessible. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x.