16 Serpentis

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16 Serpentis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Serpens
Right ascension 15h 36m 29.57967s[1]
Declination 10° 00′ 36.6338″[1]
Apparent magnitude (V) 5.253[2]
Characteristics
Spectral type K0III[3]
U−B color index +0.66[4]
B−V color index +0.95[4]
Astrometry
Proper motion (μ) RA: 46.85 mas/yr
Dec.: −114.81 mas/yr
Parallax (π) 14.11 ± 0.30[1] mas
Distance 231 ± 5 ly
(71 ± 2 pc)
Details
Surface gravity (log g) 2.64 ± 0.12[5] cgs
Temperature 4946 ± 51[5] K
Metallicity [Fe/H] −0.13 ± 0.06[5] dex
Rotational velocity (v sin i) 1.4[6] km/s
Other designations
16 Ser, HR 5802, HIP 76425, HD 139195, SAO 101640, BD+10° 2884, GC 20981
Database references
SIMBAD data

16 Serpentis is a spectroscopic binary star in the constellation Serpens.[3] It is a Barium star.[7]

References[edit]

  1. ^ a b c van Leeuwen, F.; et al. (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. Archived from the original on 2016-04-02. 
  2. ^ Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. 
  3. ^ a b "16 Ser". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 23 April 2017. 
  4. ^ a b Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Bibcode:1986EgUBV........0M. 
  5. ^ a b c Prugniel, Ph.; et al. (July 2011). "The atmospheric parameters and spectral interpolator for the MILES stars". Astronomy & Astrophysics. 531: A165. arXiv:1104.4952Freely accessible. Bibcode:2011A&A...531A.165P. doi:10.1051/0004-6361/201116769. 
  6. ^ 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, Bibcode:2008AJ....135..209M, doi:10.1088/0004-6256/135/1/209. 
  7. ^ Tomkin, J.; Lambert, D. L. (1986). "Heavy-element abundances in the mild barium stars Omicron Virginis and 16 Serpentis". The Astrophysical Journal. 311: 819. Bibcode:1986ApJ...311..819T. doi:10.1086/164821.