Beta Phoenicis

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Beta Phoenicis
Observation data
Epoch J2000      Equinox J2000
Constellation Phoenix
Right ascension 01h 06m 05.03952s[1]
Declination −46° 43′ 06.2785″[1]
Apparent magnitude (V) 3.30[2]
(4.10 / 4.19)[3]
Characteristics
Spectral type G8III + G8III:[4]
Astrometry
Proper motion (μ) RA: −80.81[1] mas/yr
Dec.: +34.97[1] mas/yr
Parallax (π) 0.12 ± 14.62[1] mas
Orbit[3]
Period (P) 170.7 ± 5.0 yr
Semi-major axis (a) 0.946 ± 0.016"
Eccentricity (e) 0.718 ± 0.016
Inclination (i) 144.0 ± 1.5°
Longitude of the node (Ω) 126.4 ± 3.5°
Periastron epoch (T) 2003.41 ± 0.10
Argument of periastron (ω)
(secondary)
293.5 ± 4.4°
Other designations
CD−47 324, HD 6595, HIP 5165, HR 322, SAO 215365.[5]
Database references
SIMBAD data

Beta Phoenicis is a binary star in the constellation Phoenix. Its apparent magnitude is 3.30[2], meaning that it can be seen with the naked eye (see Bortle scale). Located around 195.0 light-years (59.8 pc) distant, the system is composed of two orange giants of spectral type G8III.[4]

References[edit]

  1. ^ a b c d e van Leeuwen, F. (November 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. ^ a b 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. Bibcode:2002yCat.2237....0D. 
  3. ^ a b "Sixth Catalog of Orbits of Visual Binary Stars". United States Naval Observatory. 
  4. ^ a b Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878Freely accessible, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x. 
  5. ^ "* bet Phe". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2016-09-02.