Zeta Serpentis

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Zeta Serpentis
Observation data
Epoch J2000      Equinox J2000
Constellation Serpens
Right ascension 18h 00m 29.0s[1] [2]
Declination −03° 41′ 25″[1] [2]
Apparent magnitude (V) 4.63 [3]
Characteristics
Spectral type F2V [4]
B−V color index +0.36 [3]
Astrometry
Radial velocity (Rv) -50.70[5] km/s
Proper motion (μ) RA: +155.51[2] mas/yr
Dec.: -44.43[2] mas/yr
Parallax (π) 42.46 ± 0.34[2] mas
Distance 76.8 ± 0.6 ly
(23.6 ± 0.2 pc)
Absolute magnitude (MV) 2.70[6]
Details
Temperature 6,704[6] K
Rotational velocity (v sin i) 69.3±3.5[6] km/s
Other designations
57 Serpentis, GC 24503, HIP 88175, HR 6710, HD 164259, SAO 142025 [3]
Database references
SIMBAD data

Zeta Serpentis (ζ Ser, ζ Serpentis) is a star in the constellation Serpens.

Zeta Serpentis is a yellow-white F-type main sequence dwarf with an apparent magnitude of +4.63.[3] It is approximately 76.8 light years from Earth.[2] This star has nearly double the radius of the Sun and is radiating 6.3 times the Sun's luminosity from its outer atmosphere at an effective temperature of 6,529 K.[1]

References[edit]

  1. ^ a b c Boyajian, Tabetha S.; et al. (February 2012), "Stellar Diameters and Temperatures. I. Main-sequence A, F, and G Stars", The Astrophysical Journal, 746 (1): 101, arXiv:1112.3316Freely accessible, Bibcode:2012ApJ...746..101B, doi:10.1088/0004-637X/746/1/101 . See Table 10.
  2. ^ a b c d e f van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  3. ^ a b c d "Zeta Serpentis". SIMBAD Astronomical Database. Retrieved 2015-10-17. 
  4. ^ Gray, R. O.; et al. (October 2003), "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I.", The Astronomical Journal, 126 (4): 2048–2059, arXiv:astro-ph/0308182Freely accessible, Bibcode:2003AJ....126.2048G, doi:10.1086/378365 
  5. ^ Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. 
  6. ^ a b c Reiners, A. (January 2006), "Rotation- and temperature-dependence of stellar latitudinal differential rotation", Astronomy and Astrophysics, 446 (1): 267–277, arXiv:astro-ph/0509399Freely accessible, Bibcode:2006A&A...446..267R, doi:10.1051/0004-6361:20053911.