Astronomy: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 |
| Distance | 499 ± 10 ly (153 ± 3 pc) |
| Absolute magnitude (MV) | −1.11[2] |
| Details | |
| Mass | 6.3±0.1[4] M☉ |
| Radius | 3.77±0.27[5] R☉ |
| Luminosity | 912[6] L☉ |
| Surface gravity (log g) | 4.03±0.05[5] cgs |
| Temperature | 16,983[6] K |
| Metallicity [Fe/H] | −0.09±0.06[7] dex |
| Rotational velocity (v sin i) | 43[6] km/s |
| Age | 17.2±1.3[4] or 176[8] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
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
- ↑ 1.0 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, Bibcode: 2007A&A...474..653V.
- ↑ 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 Houk, Nancy (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, 1, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode: 1975mcts.book.....H.
- ↑ 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, Bibcode: 2011MNRAS.410..190T.
- ↑ 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, Bibcode: 2005AJ....129.1642F.
- ↑ 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, Bibcode: 2019MNRAS.485.3457B.
- ↑ 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, Bibcode: 2016ApJ...826..171G.
- ↑ 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, Bibcode: 2012AstL...38..694G.
- ↑ "HD 66591". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+66591.
- ↑ 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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