Gamma Horologii

Gamma Horologii
Observation data
Epoch J2000      Equinox J2000
Constellation Horologium
Right ascension 02h 45m 27.47817s[1]
Declination 63° 42 16.3888 [1]
Apparent magnitude (V) +5.755
Characteristics
Spectral type G8III/IV
Astrometry
Radial velocity (Rv)-11.00 ± 7.4 km/s
Proper motion (μ) RA: 19.42 ± 0.28[1] mas/yr
Dec.: -8.61 ± 0.27[1] mas/yr
Parallax (π)17.86 ± 0.24[1] mas
Distance183 ± 2 ly
(56.0 ± 0.8 pc)
Other designations
HD 17504, HIP 12871, HR 833, SAO 248642.[2]


Gamma Horologii is a yellow subgiant or giant star in the constellation Horologium. Located 183 ± 2 light-years from Earth,[1] it shines with a luminosity approximately 16 times that of the Sun and has a surface temperature of 5175 K.[3]

References

  1. 1 2 3 4 5 6 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
  2. "Gamma Horologii". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 18 March 2016.
  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.
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