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HD 96566

From Wikipedia, the free encyclopedia
Star in the constellation Carina
For other stars with theBayer designation z Carinae, seez Carinae.
HD 96566
Location of HD 96566 (circled in red)
Observation data
Epoch J2000      Equinox J2000
ConstellationCarina[1]
Right ascension11h 06m 32.42648s[2]
Declination−62° 25′ 26.8106″[2]
Apparent magnitude (V)+4.62[1]
Characteristics
Evolutionary stagered giant branch[2]
Spectral typeG7.5III[3]
B−Vcolor index0.988±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 mas[2]
Distance383 ± 4 ly
(118 ± 1 pc)
Absolute magnitude (MV)−0.81[1]
Details
Mass3.70[4] M☉
Radius21.3[5] R☉
Luminosity242[5] L☉
Surface gravity (log g)2.53[4] cgs
Temperature4,938[5] K
Metallicity[Fe/H]0.06[4] dex
Rotational velocity (v sin i)7.84[6] km/s
Age202[2] Myr
Other designations
z1 Carinae,CPD−61°2067,GC 15288,GJ 9345,HD 96566,HIP 54301,HR 4325,SAO 251269[7]
Database references
SIMBADdata

HD 96566 is a single[8]star in the southernconstellation ofCarina. It has theBayer designationz1 Carinae;HD 96566 is the identifier from theHenry Draper Catalogue. This object has a yellow hue and is visible to the naked eye with anapparent visual magnitude of +4.62.[1] The star is located at a distance of approximately 383 light years from theSun based onparallax, but is drifting closer with aradial velocity of −1 km/s.[2] It has anabsolute magnitude of −0.81.[1]

This is an agingG-typegiant star with astellar classification of G7.5III,[3] which indicates it has exhausted the supply of hydrogen at itscore then cooled and expanded off themain sequence. It has an estimated 3.7 times themass of the Sun[4] and has grown to 21 times theSun's radius.[5] Themetallicity, or abundance of elements other than hydrogen and helium, is about the same as in the Sun.[4] It is radiating about 242 times theSun's luminosity from itsphotosphere at aneffective temperature of4,913 K.[5]

References

[edit]
  1. ^abcdefAnderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation".Astronomy Letters.38 (5): 331.arXiv:1108.4971.Bibcode:2012AstL...38..331A.doi:10.1134/S1063773712050015. XHIP record for this object atVizieR.
  2. ^abcdefghiVallenari, A.; et al. (Gaia collaboration) (2023)."Gaia Data Release 3. Summary of the content and survey properties".Astronomy and Astrophysics.674: A1.arXiv:2208.00211.Bibcode:2023A&A...674A...1G.doi:10.1051/0004-6361/202243940.S2CID 244398875. Gaia DR3 record for this source atVizieR.
  3. ^abKeenan, Philip C.; McNeil, Raymond C. (1989). "The Perkins catalog of revised MK types for the cooler stars".Astrophysical Journal Supplement Series.71: 245.Bibcode:1989ApJS...71..245K.doi:10.1086/191373.
  4. ^abcdeOttoni, G.; Udry, S.; Ségransan, D.; Buldgen, G.; Lovis, C.; Eggenberger, P.; Pezzotti, C.; Adibekyan, V.; Marmier, M.; Mayor, M.; Santos, N. C.; Sousa, S. G.; Lagarde, N.; Charbonnel, C. (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.arXiv:2201.01528.Bibcode:2022A&A...657A..87O.doi:10.1051/0004-6361/202040078.
  5. ^abcdeFetherolf, Tara; Pepper, Joshua; Simpson, Emilie; Kane, Stephen R.; Močnik, Teo; English, John Edward; Antoci, Victoria; Huber, Daniel; Jenkins, Jon M.; Stassun, Keivan; Twicken, Joseph D.; Vanderspek, Roland; Winn, Joshua N. (2023)."Variability Catalog of Stars Observed during the TESS Prime Mission".The Astrophysical Journal Supplement Series.268 (1): 4.arXiv:2208.11721.Bibcode:2023ApJS..268....4F.doi:10.3847/1538-4365/acdee5.
  6. ^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.arXiv:2311.12438.Bibcode:2024A&A...683A.125P.doi:10.1051/0004-6361/202348263.
  7. ^"HD 96566".SIMBAD.Centre de données astronomiques de Strasbourg. Retrieved2018-07-11.
  8. ^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,arXiv:0806.2878,Bibcode:2008MNRAS.389..869E,doi:10.1111/j.1365-2966.2008.13596.x,S2CID 14878976.
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