Astronomy:HD 133683
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Short description: Yellow-white hued star in the constellation Triangulum Australe
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| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Triangulum Australe[1] |
| Right ascension | 15h 09m 29.91331s[2] |
| Declination | −67° 05′ 02.8878″[2] |
| Apparent magnitude (V) | +5.76[1] |
| Characteristics | |
| Spectral type | F5Ib[3] |
| B−V color index | 0.675±0.017[1] |
| Astrometry | |
| Radial velocity (Rv) | −14.72±0.14[2] km/s |
| Proper motion (μ) | RA: −3.146[2] mas/yr Dec.: −3.314[2] mas/yr |
| Parallax (π) | 0.9159 ± 0.0583[2] mas |
| Distance | 3,600 ± 200 ly (1,090 ± 70 pc) |
| Absolute magnitude (MV) | −5.33[4] |
| Details | |
| Mass | 11.59±1.12[5] M☉ |
| Radius | 79.3+1.9 −6.2[2] R☉ |
| Luminosity | 5,436±458[2] L☉ |
| Surface gravity (log g) | 1.70[6] cgs |
| Temperature | 5,567+231 −64[2] K |
| Metallicity [Fe/H] | 0.00[6] dex |
| Rotational velocity (v sin i) | 4.7±0.2[7] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 133683 is a single[9] star in the southern constellation of Triangulum Australe. It has a yellow-white hue and is dimly visible to the naked eye with an apparent visual magnitude of +5.76.[1] The distance to this star is approximately 3,600 light-years based on parallax, but it is drifting closer with a radial velocity of −14.7 km/s.[2]
This is a massive supergiant star with a stellar classification of F5Ib.[3] It has around 11[5] times the mass of the Sun and is spinning with a projected rotational velocity of 4.7 km/s.[7] The star has expanded to 79[2] times the radius of the Sun. It is radiating 5,400[2] times the luminosity of the Sun from its photosphere at an effective temperature of 5,567 K.[2]
References
- ↑ 1.0 1.1 1.2 1.3 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.
- ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 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.
- ↑ 3.0 3.1 Houk, Nancy; Cowley, A. P. (1979), Michigan catalogue of two-dimensional spectral types for the HD stars, 1, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, Bibcode: 1978mcts.book.....H.
- ↑ Melnik, A. M.; Dambis, A. K. (2020). "Distance scale for high-luminosity stars in OB associations and in field with Gaia DR2. Spurious systematic motions". Astrophysics and Space Science 365 (7): 112. doi:10.1007/s10509-020-03827-0. Bibcode: 2020Ap&SS.365..112M.
- ↑ 5.0 5.1 Hohle, M. M. et al. (April 2010), "Masses and luminosities of O- and B-type stars and red supergiants", Astronomische Nachrichten 331 (4): 349, doi:10.1002/asna.200911355, Bibcode: 2010AN....331..349H.
- ↑ 6.0 6.1 Luck, R. Earle (2014), "Parameters and Abundances in Luminous Stars", The Astronomical Journal 147 (6): 137, doi:10.1088/0004-6256/147/6/137, Bibcode: 2014AJ....147..137L.
- ↑ 7.0 7.1 Ammler-von Eiff, Matthias; Reiners, Ansgar (June 2012), "New measurements of rotation and differential rotation in A-F stars: are there two populations of differentially rotating stars?", Astronomy & Astrophysics 542: A116, doi:10.1051/0004-6361/201118724, Bibcode: 2012A&A...542A.116A.
- ↑ "HD 133683". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+133683.
- ↑ Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society 389 (2): 869–879, doi:10.1111/j.1365-2966.2008.13596.x, Bibcode: 2008MNRAS.389..869E.
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