Psi Phoenicis
  | |
| 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 mas[1] |
| 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 | |
| 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
- ^ a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
- ^ 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.
- ^ 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.
- ^ a b c d Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. Vizier catalog entry
- ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
- ^ 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:1311.5558. Bibcode:2014MNRAS.443..698S. doi:10.1093/mnras/stu1072.
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