Astronomy:HD 96566
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| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Carina[1] |
| Right ascension | 11h 06m 32.42648s[2] |
| Declination | −62° 25′ 26.8106″[2] |
| Apparent magnitude (V) | +4.62[1] |
| Characteristics | |
| Evolutionary stage | red giant branch[2] |
| Spectral type | G7.5III[3] |
| B−V color index | 0.988±0.065[1] |
| Astrometry | |
| Radial velocity (Rv) | −1.45±0.12[2] km/s |
| Proper motion (μ) | RA: −37.621±0.099[2] mas/yr Dec.: +9.269±0.105[2] mas/yr |
| Parallax (π) | 8.5066 ± 0.0862[2] mas |
| Distance | 383 ± 4 ly (118 ± 1 pc) |
| Absolute magnitude (MV) | −0.81[1] |
| Details | |
| Mass | 3.70[4] M☉ |
| Radius | 21.3[5] R☉ |
| Luminosity | 242[5] L☉ |
| Surface gravity (log g) | 2.53[4] cgs |
| Temperature | 4,938[5] K |
| Metallicity [Fe/H] | 0.06[4] dex |
| Rotational velocity (v sin i) | 7.84[6] km/s |
| Age | 202[2] Myr |
| 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.[1] The star is located at a distance of approximately 383 light years from the Sun based on parallax, but is drifting closer with a radial velocity of −1 km/s.[2] It has an absolute magnitude of −0.81.[1]
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 3.7 times the mass of the Sun[4] and has grown to 21 times the Sun's radius.[5] The metallicity, or abundance of elements other than hydrogen and helium, is about the same as in the Sun.[4] It is radiating about 242 times the Sun's luminosity from its photosphere at an effective temperature of 4,913 K.[5]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A XHIP record for this object at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 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 4.2 4.3 4.4 Ottoni, G.; Udry, S.; Ségransan, D.; Buldgen, G.; Lovis, C.; Eggenberger, P.; Pezzotti, C.; Adibekyan, V. et al. (2022). "CORALIE radial-velocity search for companions around evolved stars (CASCADES). I. Sample definition and first results: Three new planets orbiting giant stars". Astronomy and Astrophysics 657: A87. doi:10.1051/0004-6361/202040078. Bibcode: 2022A&A...657A..87O.
- ↑ 5.0 5.1 5.2 5.3 5.4 Fetherolf, Tara; Pepper, Joshua; Simpson, Emilie; Kane, Stephen R.; Močnik, Teo; English, John Edward; Antoci, Victoria; Huber, Daniel et al. (2023). "Variability Catalog of Stars Observed during the TESS Prime Mission". The Astrophysical Journal Supplement Series 268 (1): 4. doi:10.3847/1538-4365/acdee5. Bibcode: 2023ApJS..268....4F.
- ↑ Perdelwitz, V.; Trifonov, T.; Teklu, J. T.; Sreenivas, K. R.; Tal-Or, L. (2024). "Analysis of the public HARPS/ESO spectroscopic archive. Ca II H&K time series for the HARPS radial velocity database". Astronomy and Astrophysics 683. doi:10.1051/0004-6361/202348263. Bibcode: 2024A&A...683A.125P.
- ↑ "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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