Astronomy:HD 199442

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Short description: Star in the constellation Aquarius
HD 199442
Observation data
Equinox J2000.0]] (ICRS)
Constellation Aquarius
Right ascension  20h 57m 10.57663s[1]
Declination +00° 27′ 49.6073″[1]
Apparent magnitude (V) 6.065[2]
Characteristics
Spectral type K2III[2]
U−B color index +1.29[3]
B−V color index +1.22[3]
Astrometry
Radial velocity (Rv)−26.47[2] km/s
Proper motion (μ) RA: +10.70[1] mas/yr
Dec.: −62.77[1] mas/yr
Parallax (π)10.64 ± 0.44[1] mas
Distance310 ± 10 ly
(94 ± 4 pc)
Details
Mass1.20[2] M☉
Luminosity1.65[2] L☉
Surface gravity (log g)2.49[2] cgs
Temperature4,605[2] K
Metallicity [Fe/H]0.19[2] dex
Rotational velocity (v sin i)2.7[4] km/s
Other designations
ADS 14457 A, BD-00° 4132, HIP 103414, HR 8017, SAO 126396
Database references
SIMBADdata

HD 199442 is a giant star situated in the Aquarius constellation. It is located about 310 light years from the Solar System.

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, doi:10.1051/0004-6361:20078357, Bibcode: 2007A&A...474..653V 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Luck, R. Earle; Heiter, Ulrike (June 2007), "Giants in the Local Region", The Astronomical Journal 133 (6): 2464–2486, doi:10.1086/513194, Bibcode: 2007AJ....133.2464L 
  3. ↑ 3.0 3.1 Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode: 1986EgUBV........0M 
  4. ↑ Massarotti, Alessandro et al. (January 2008), "Rotational and radial velocities for a sample of 761 HIPPARCOS giants and the role of binarity", The Astronomical Journal 135 (1): 209–231, doi:10.1088/0004-6256/135/1/209, Bibcode: 2008AJ....135..209M 

External links




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