Psi Phoenicis

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ψ Phoenicis
Phoenix constellation map.svg
Red circle.svg

Location of ψ Phoenicis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Phoenix
Right ascension 01h 53m 38.74103s[1]
Declination −46° 18′ 09.6048″[1]
Apparent magnitude (V) 4.41[2] (4.3 - 4.5[3])
Characteristics
Spectral type M4III[4]
U−B color index +1.71[2]
B−V color index +1.59[2]
Variable type SR[3]
Astrometry
Radial velocity (Rv) +2.90[5] km/s
Proper motion (μ) RA: -93.16[1] mas/yr
Dec.: -91.17[1] mas/yr
Parallax (π) 9.54 ± 0.19[1] mas
Distance 342 ± 7 ly
(105 ± 2 pc)
Absolute magnitude (MV) -0.71[4]
Details
Luminosity 647[4] L
Surface gravity (log g) 0.65[6] cgs
Temperature 3,586[6] K
Metallicity [Fe/H] 0.14[6] dex
Age 4.9[6] Gyr
Other designations
FK5 67, GC 2303, HIP 8837, HR 555, HD 11695, SAO 215696
Database references
SIMBAD data

Psi Phoenicis (ψ Phe) is a class M4III[4] (red giant) semiregular variable star in the constellation Phoenix. Its apparent magnitude varies from 4.3 to 4.5 with a period of about 30 days[3] and it is approximately 342 light years away based on parallax.[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. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ a b c 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 c Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S. 
  4. ^ a b c d Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971Freely accessible. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015.  Vizier catalog entry
  5. ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. 
  6. ^ a b c d Schonrich, R.; Bergemann, M. (2014). "Fundamental stellar parameters and metallicities from Bayesian spectroscopy: Application to low- and high-resolution spectra". Monthly Notices of the Royal Astronomical Society. 443: 698. arXiv:1311.5558Freely accessible. Bibcode:2014MNRAS.443..698S. doi:10.1093/mnras/stu1072.