| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Pictor |
| Right ascension | 05 19 22.13548 |
| Declination | −50° 36′ 21.4820″ |
| Apparent magnitude (V) | +5.43 |
| Characteristics | |
| Spectral type | F6 IV |
| U−B color index | +0.01 |
| B−V color index | +0.52 |
| Astrometry | |
| Radial velocity (Rv) | +43.8±0.2 km/s |
| Proper motion (μ) | RA: +23.64 mas/yr Dec.: +227.43 mas/yr |
| Parallax (π) | 28.00 ± 0.23 mas |
| Distance | 116.5 ± 1.0 ly (35.7 ± 0.3 pc) |
| Absolute magnitude (MV) | 2.65±0.04 |
| Details | |
| Mass | 1.39 M☉ |
| Radius | 5.3 R☉ |
| Surface gravity (log g) | 4.07±0.07 cgs |
| Temperature | 6,411±56 K |
| Metallicity | 0.07 dex |
| Rotational velocity (v sin i) | 5.6±1.0 km/s |
| Age | 2.6 Gyr |
| Other designations | |
| ζ Pic, CD−50° 1723, HD 35072, HIP 24829, HR 1767, SAO 233926 | |
| Database references | |
| SIMBAD | data |
ζ Pictoris, Latinised as Zeta Pictoris, is a solitary star in the southern constellation of Pictor. It is visible to the naked eye with an apparent visual magnitude of +5.43. Based upon an annual parallax shift of 28.00 mas as seen from the Earth, the system is located 116.5 light years from the Sun.
This is an evolving F-type subgiant star with a stellar classification of F6 IV. It is a thin disk star with an estimated 1.4 times the mass of the Sun and about 5.3 times the Sun's radius. At the age of 2.6 billion years, Zeta Pictoris is spinning with a projected rotational velocity of 5.6 km/s.
References
- ^ van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357, S2CID 18759600.
- ^ Przybylski, A.; Kennedy, P. M. (1965), "Radial velocities and three-colour photometry of 166 southern stars", Monthly Notices of the Royal Astronomical Society, 131: 95–104, Bibcode:1965MNRAS.131...95P, doi:10.1093/mnras/131.1.95.
- ^ Gray, R. O.; et al. (2006), "Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample", The Astronomical Journal, 132 (1): 161–70, arXiv:astro-ph/0603770, Bibcode:2006AJ....132..161G, doi:10.1086/504637, S2CID 119476992.
- De Bruijne, J. H. J.; Eilers, A.-C. (2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics, 546: A61, arXiv:1208.3048, Bibcode:2012A&A...546A..61D, doi:10.1051/0004-6361/201219219, S2CID 59451347.
- Soubiran, C.; Girard, P. (July 2005), "Abundance trends in kinematical groups of the Milky Way's disk", Astronomy and Astrophysics, 438 (1): 1391–51, arXiv:astro-ph/0503498, Bibcode:2005A&A...438..139S, doi:10.1051/0004-6361:20042390, S2CID 42282870.
- ^ Bensby, T.; et al. (2014), "Exploring the Milky Way stellar disk. A detailed elemental abundance study of 714 F and G dwarf stars in the solar neighbourhood", Astronomy & Astrophysics, 562 (A71): 28, arXiv:1309.2631, Bibcode:2014A&A...562A..71B, doi:10.1051/0004-6361/201322631, S2CID 118786105.
- ^ Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics, 367 (Third ed.): 521–524, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451, S2CID 425754.
- ^ De Medeiros, J. R.; Mayor, M. (1999), "A catalog of rotational and radial velocities for evolved stars", Astronomy and Astrophysics Supplement Series, 139 (3): 433, arXiv:astro-ph/0608248, Bibcode:1999A&AS..139..433D, doi:10.1051/aas:1999401.
- "zet Pic". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-06-22.
- 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:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
- Bensby, T.; Feltzing, S. (April 2006), "The origin and chemical evolution of carbon in the Galactic thin and thick discs*" (PDF), Monthly Notices of the Royal Astronomical Society, 367 (3): 1181–1193, arXiv:astro-ph/0601130, Bibcode:2006MNRAS.367.1181B, doi:10.1111/j.1365-2966.2006.10037.x, hdl:2027.42/74854, S2CID 7771039.
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