Beta Pyxidis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Pyxis |
| Right ascension | 08h 40m 06.1435s[1] |
| Declination | −35° 18′ 30.069″[1] |
| Apparent magnitude (V) | 3.972[2] |
| Characteristics | |
| Spectral type | G7Ib-II[2] |
| U−B color index | +0.646[3] |
| B−V color index | +0.935[3] |
| Astrometry | |
| Radial velocity (Rv) | −13.4[4] km/s |
| Proper motion (μ) | RA: 9.68[1] mas/yr Dec.: −21.18[1] mas/yr |
| Parallax (π) | 8.40 ± 0.55 mas[1] |
| Distance | 390 ± 30 ly (119 ± 8 pc) |
| Absolute magnitude (MV) | −0.78[5] |
| Other designations | |
Beta Pyxidis (β Pyx) is a binary star system[2] located in the constellation Pyxis. It is an estimated 390 light years from the Earth. The spectrum matches a giant star of spectral class G7Ib-II. It is a young disk star system with space velocity components, U = −11.0, V = +11.8 and W = −2.2 km/s.[5]
References
- ^ a b c d e Perryman, M. A. C.; et al. (1997). "The Hipparcos Catalogue". Astronomy and Astrophysics. 323: L49–L52. Bibcode:1997A&A...323L..49P. Retrieved 2009-04-15.
{{cite journal}}: Explicit use of et al. in:|author=(help) - ^ a b c "bet Pyx -- Star in double system". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-04-15.
- ^ a b Gutierrez-Moreno, Adelina; Moreno, H.; Stock, J.; Torres, C.; Wroblewski, H. (1966). "A System of photometric standards". 1. Publicacioness Universidad de Chile Departmentp de Astronomy: 1–17.
{{cite journal}}: Cite journal requires|journal=(help)CS1 maint: multiple names: authors list (link) - ^ Evans, D. S. (June 20–24, 1966). "The Revision of the General Catalogue of Radial Velocities". Proceedings from IAU Symposium no. 30, Determination of Radial Velocities and their Applications. University of Toronto: Dordrecht, D. Reidel Publishing Co. p. 57. Retrieved 2009-04-15.
{{cite conference}}: Unknown parameter|booktitle=ignored (|book-title=suggested) (help)CS1 maint: date format (link) - ^ a b Eggen, O. J. (1994). "Photometry of F-K type bright giants and supergiants. 3: The luminosity, reddening, and heavy element abundance of GK stars". The Astrophysical Journal. 107 (6): 2184–2210. Bibcode:1994AJ....107.2184E. – see p. 2205.
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