Astronomy:HD 96566
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Carina |
| Right ascension | 11h 06m 32.42668s[1] |
| Declination | −62° 25′ 26.8119″[1] |
| Apparent magnitude (V) | +4.62[2] |
| Characteristics | |
| Spectral type | G7.5III[3] |
| B−V color index | 0.988±0.065[2] |
| Astrometry | |
| Radial velocity (Rv) | −1.07±0.17[1] km/s |
| Proper motion (μ) | RA: −36.93±0.16[4] mas/yr Dec.: +9.46±0.14[4] mas/yr |
| Parallax (π) | 8.6750 ± 0.1387[1] mas |
| Distance | 376 ± 6 ly (115 ± 2 pc) |
| Absolute magnitude (MV) | −0.81[2] |
| Details | |
| Mass | 3.6[5] M☉ |
| Radius | 20.21+0.36 −0.39[1] R☉ |
| Luminosity | 214.4±4.0[1] L☉ |
| Surface gravity (log g) | 2.59±0.17[6] cgs |
| Temperature | 4,913+49 −43[1] K |
| Metallicity [Fe/H] | 0.05±0.05[6] dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 96566 is a single[8] star in the southern constellation of Carina. It has the Bayer designation z1 Carinae; HD 96566 is the identifier from the Henry Draper Catalogue. This object has a yellow hue and is visible to the naked eye with an apparent visual magnitude of +4.62.[2] The star is located at a distance of approximately 376 light years from the Sun based on parallax, but is drifting closer with a radial velocity of −1 km/s.[1] It has an absolute magnitude of −0.81.[2]
This is an aging G-type giant star with a stellar classification of G7.5III,[3] which indicates it has exhausted the supply of hydrogen at its core then cooled and expanded off the main sequence. It has an estimated 3.6[5] times the mass of the Sun and has grown to 20[1] times the Sun's radius. The metallicity, or abundance of elements other than hydrogen and helium, is about the same as in the Sun.[6] It is radiating about 214[1] times the Sun's luminosity from its photosphere at an effective temperature of 4,913 K.[1]
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters 38 (5): 331, doi:10.1134/S1063773712050015, Bibcode: 2012AstL...38..331A.
- ↑ 3.0 3.1 Keenan, Philip C.; McNeil, Raymond C. (1989). "The Perkins catalog of revised MK types for the cooler stars". Astrophysical Journal Supplement Series 71: 245. doi:10.1086/191373. Bibcode: 1989ApJS...71..245K.
- ↑ 4.0 4.1 van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, doi:10.1051/0004-6361:20078357, Bibcode: 2007A&A...474..653V.
- ↑ 5.0 5.1 Gondoin, P. (December 1999), "Evolution of X-ray activity and rotation on G-K giants", Astronomy and Astrophysics 352: 217–227, Bibcode: 1999A&A...352..217G.
- ↑ 6.0 6.1 6.2 Alves, S. et al. (April 2015), "Determination of the spectroscopic stellar parameters for 257 field giant stars", Monthly Notices of the Royal Astronomical Society 448 (3): 2749–2765, doi:10.1093/mnras/stv189, Bibcode: 2015MNRAS.448.2749A.
- ↑ "HD 96566". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+96566.
- ↑ Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society 389 (2): 869, doi:10.1111/j.1365-2966.2008.13596.x, Bibcode: 2008MNRAS.389..869E.
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