Zeta Phoenicis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Phoenix |
| Right ascension | 01h 08m 23.08s[1] |
| Declination | –55° 14′ 44.7″[1] |
| Apparent magnitude (V) | 3.9 to 4.4 |
| Characteristics | |
| Spectral type | B6 V + B9 V |
| B−V color index | –0.12 |
| Variable type | Algol |
| Astrometry | |
| Radial velocity (Rv) | +15.4 km/s |
| Proper motion (μ) | RA: 20.87 ± 0.36[1] mas/yr Dec.: 30.64 ± 0.38[1] mas/yr |
| Parallax (π) | 10.92 ± 0.39[1] mas |
| Distance | 300 ± 10 ly (92 ± 3 pc) |
| Absolute magnitude (MV) | -0.37/0.90[2] |
| Details | |
| Mass | 3.92/2.55[2] M☉ |
| Radius | 2.85/1.85[2] R☉ |
| Luminosity | 316/65[2] L☉ |
| Surface gravity (log g) | 4.12/4.31[2] cgs |
| Temperature | 14,400/12,000[2] K |
| Other designations | |
Zeta Phoenicis (ζ Phe, ζ Phoenicis) is a 280 light-year distant star in the constellation Phoenix. It is an Algol-type eclipsing binary star and its apparent magnitude fluctuates between 3.9 and 4.4 with a period of 1.66977 days. Zeta Phoenicis is most likely a four-star system: it has two other telescopic components with an apparent magnitude of 7.2 and 8.2 at an angular separation of 0.8 and 6.4 arcseconds from the main pair.[3]
References
- 1 2 3 4 5 van Leeuwen, F. (2007). "HIP 5348". Hipparcos, the New Reduction. Retrieved 2009-12-14.
- 1 2 3 4 5 6 Torres, G.; Andersen, J.; Giménez, A. (February 2010). "Accurate masses and radii of normal stars: modern results and applications". The Astronomy and Astrophysics Review 18 (1–2): 67–126. arXiv:0908.2624. Bibcode:2010A&ARv..18...67T. doi:10.1007/s00159-009-0025-1.
- ↑ Clausen, J. V.; Gyldenkerne, K.; Grønbech, B. (January 1976). "Four-color photometry of eclipsing binaries. IIIb: Zeta Phoenicis, analysis of light curves and determination of absolute dimensions". Astronomy and Astrophysics 46: 205–212. Bibcode:1976A&A....46..205C.
- Der Brockhaus. Astronomie. 2006, p. 334.
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