Astronomy:HR 3159

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Short description: Star in the constellation Carina
HR 3159
Observation data
Equinox J2000.0]] (ICRS)
Constellation Carina
Right ascension  08h 00m 19.96678s[1]
Declination −63° 34′ 02.8420″[1]
Apparent magnitude (V) 4.81[2]
Characteristics
Spectral type B4V[3]
B−V color index −0.173±0.007[2]
Astrometry
Radial velocity (Rv)+22.1±2.8[2] km/s
Proper motion (μ) RA: −1.89[1] mas/yr
Dec.: 19.21[1] mas/yr
Parallax (π)6.53 ± 0.13[1] mas
Distance499 ± 10 ly
(153 ± 3 pc)
Absolute magnitude (MV)−1.11[2]
Details
Mass6.3±0.1[4] M
Radius3.77±0.27[5] R
Luminosity912[6] L
Surface gravity (log g)4.03±0.05[5] cgs
Temperature16,983[6] K
Metallicity [Fe/H]−0.09±0.06[7] dex
Rotational velocity (v sin i)43[6] km/s
Age17.2±1.3[4] or 176[8] Myr
Other designations
D Car, CD−63°866, FK5 2624, GC 10893, HD 66591, HIP 39138, HR 3159, SAO 250069[9]
Database references
SIMBADdata

HR 3159 is a single[10] star in the southern constellation of Carina, positioned near the southern constellation border with Volans. It has the Bayer designation D Carinae; HR 3159 is the Bright Star Catalogue designation. This object has a blue-white hue and is visible to the naked eye with an apparent visual magnitude of +4.81.[2] It is located at a distance of approximately 499 light years from the Sun based on parallax,[1] and is drifting further away with a radial velocity of 22 km/s.

This object is a B-type main-sequence star with a stellar classification of B4V,[3] which indicates it is undergoing core hydrogen fusion. The star has a radius of nearly four times the radius of the Sun,[5] and over six[4] times the Sun's mass. Age estimates range from 17[4] up to 176[8] million years old, and it is spinning with a projected rotational velocity of 43 km/s.[6] It is radiating 912[6] times the luminosity of the Sun from its photosphere at an effective temperature of 16,983 K.[6]

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, doi:10.1051/0004-6361:20078357, Bibcode2007A&A...474..653V. 
  2. 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, Bibcode2012AstL...38..331A. 
  3. 3.0 3.1 Houk, Nancy (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, 1, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode1975mcts.book.....H. 
  4. 4.0 4.1 4.2 4.3 Tetzlaff, N. et al. (January 2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun", Monthly Notices of the Royal Astronomical Society 410 (1): 190–200, doi:10.1111/j.1365-2966.2010.17434.x, Bibcode2011MNRAS.410..190T. 
  5. 5.0 5.1 5.2 Fitzpatrick, E. L.; Massa, D. (March 2005), "Determining the Physical Properties of the B Stars. II. Calibration of Synthetic Photometry", The Astronomical Journal 129 (3): 1642–1662, doi:10.1086/427855, Bibcode2005AJ....129.1642F. 
  6. 6.0 6.1 6.2 6.3 6.4 6.5 Balona, L. A. et al. (May 2019), "Rotational modulation in TESS B stars", Monthly Notices of the Royal Astronomical Society 485 (3): 3457–3469, doi:10.1093/mnras/stz586, Bibcode2019MNRAS.485.3457B. 
  7. Gáspár, András et al. (2016), "The Correlation between Metallicity and Debris Disk Mass", The Astrophysical Journal 826 (2): 171, doi:10.3847/0004-637X/826/2/171, Bibcode2016ApJ...826..171G. 
  8. 8.0 8.1 Gontcharov, G. A. (November 2012), "Spatial distribution and kinematics of OB stars", Astronomy Letters 38 (11): 694–706, doi:10.1134/S1063773712110035, Bibcode2012AstL...38..694G. 
  9. "HD 66591". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+66591. 
  10. 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, Bibcode2008MNRAS.389..869E.