H Scorpii
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.
| 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) |
| Absolute magnitude (MV) | −0.84±0.037[3] |
| Other designations | |
| Database references | |
| SIMBAD | data |
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.[4]
References
- SIMBAD, HR 6166 (accessed 17 February 2013)
- van Leeuwen, F. (2007). "Validation of the New Hipparcos Reduction". Astronomy and Astrophysics. 474 (2): 653–64. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
- Park, Sunkyung; et al. (2013), "Wilson-Bappu Effect: Extended to Surface Gravity", The Astronomical Journal, 146 (4): 73, arXiv:1307.0592, Bibcode:2013AJ....146...73P, doi:10.1088/0004-6256/146/4/73.
- 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:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x.
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