Kappa Serpentis

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Kappa Serpentis
Observation data
Epoch J2000      Equinox J2000
Constellation Serpens
Right ascension 15h 48m 44.37676s [1]
Declination 18° 08′ 29.6342″ [1]
Apparent magnitude (V) 4.09 [2]
Characteristics
Spectral type M0.5III [3]
U−B color index +1.95 [2]
B−V color index +1.62 [2]
Astrometry
Radial velocity (Rv) -38.48[4] km/s
Proper motion (μ) RA: -51.88[1] mas/yr
Dec.: -88.10[1] mas/yr
Parallax (π) 8.54 ± 0.23[1] mas
Distance 380 ± 10 ly
(117 ± 3 pc)
Absolute magnitude (MV) -1.25 [5]
Other designations
35 Serpentis, FK5 584, GC 21255, HIP 77450, HR 5879, HD 141477, SAO 101752 [3]
Database references
SIMBAD data

Kappa Serpentis (κ Ser, κ Serpentis) is a star in the constellation Serpens, in its head (Serpens Caput). It is a red M-type giant[3] with an apparent magnitude of +4.09.[2] It is approximately 382 light years from Earth.[1]

References[edit]

  1. ^ a b c d e f van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ a b c d Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues 2237: 0. Bibcode:2002yCat.2237....0D. 
  3. ^ a b c "Kappa Serpentis". SIMBAD Astronomical Database. Retrieved 2015-10-17. 
  4. ^ Famaey, B.; Pourbaix, D.; Frankowski, A.; Van Eck, S.; Mayor, M.; Udry, S.; Jorissen, A. (2009). "Spectroscopic binaries among Hipparcos M giants,. I. Data, orbits, and intrinsic variations". Astronomy and Astrophysics 498 (2): 627–640. arXiv:0901.0934. Bibcode:2009A&A...498..627F. doi:10.1051/0004-6361/200810698. 
  5. ^ Absolute magnitude calculated as , where is the star's absolute magnitude, is the star's apparent magnitude, and is the star's measured parallax in arcseconds.