Astronomy:HD 137058
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Short description: Star in the southern constellation of Lupus
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Lupus[1] |
| Right ascension | 15h 25m 20.20923s[2] |
| Declination | −38° 44′ 00.8803″[2] |
| Apparent magnitude (V) | 4.60[1] |
| Characteristics | |
| Evolutionary stage | main sequence[3] |
| Spectral type | A0 V[4] |
| B−V color index | 0.000±0.015[1] |
| Astrometry | |
| Radial velocity (Rv) | −3.0±2.8[5] km/s |
| Proper motion (μ) | RA: −41.573[2] mas/yr Dec.: −24.603[2] mas/yr |
| Parallax (π) | 13.6178 ± 0.4759[2] mas |
| Distance | 240 ± 8 ly (73 ± 3 pc) |
| Absolute magnitude (MV) | −0.76[1] |
| Details | |
| Mass | 2.4[6] M☉ |
| Radius | 3.3[6] R☉ |
| Luminosity | 72[6] L☉ |
| Surface gravity (log g) | 3.78[6] cgs |
| Temperature | 9,283[6] K |
| Rotational velocity (v sin i) | 300.0[7] km/s |
| Age | 267[8] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 137058 is a star in the southern constellation of Lupus. Eggleton and Tokovinin (2008) list it as a single star,[10] although Nitschelm and David (2011) noted it may be a double-lined spectroscopic binary.[11] Its apparent visual magnitude is 4.60,[1] which is bright enough to be visible to the naked eye. Based upon an annual parallax shift of 13.6 mas,[2] it is located 240 light years away.
The stellar classification of the primary component is A0 V,[4] matching an A-type main-sequence star. It is spinning rapidly with a projected rotational velocity of 300 km/s, giving it an oblate shape with an equatorial radius 22% larger than the polar radius.[7] The star is radiating 72 times the Sun's luminosity from its photosphere at an effective temperature of 9,283 K.[6]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 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 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.
- ↑ Patten, B. M.; Willson, L. A. (1991). "An IRAS Survey of Main-Sequence B,A, and F Stars". The Astronomical Journal 102: 323. doi:10.1086/115879. Bibcode: 1991AJ....102..323P.
- ↑ 4.0 4.1 Houk, Nancy (1978). Michigan catalogue of two-dimensional spectral types for the HD stars. 2. Ann Arbor: Dept. of Astronomy, University of Michigan. Bibcode: 1978mcts.book.....H.
- ↑ de Bruijne, J. H. J.; Eilers, A.-C. (October 2012). "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project". Astronomy & Astrophysics 546: 14. doi:10.1051/0004-6361/201219219. A61. Bibcode: 2012A&A...546A..61D.
- ↑ 6.0 6.1 6.2 6.3 6.4 6.5 Stassun, Keivan G. et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal 158 (4): 138. doi:10.3847/1538-3881/ab3467. Bibcode: 2019AJ....158..138S.
- ↑ 7.0 7.1 van Belle, Gerard T. (March 2012). "Interferometric observations of rapidly rotating stars". The Astronomy and Astrophysics Review 20 (1): 51. doi:10.1007/s00159-012-0051-2. Bibcode: 2012A&ARv..20...51V.
- ↑ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters 38 (12): 771. doi:10.1134/S1063773712120031. Bibcode: 2012AstL...38..771G.
- ↑ "HD 137058". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+137058.
- ↑ 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.
- ↑ Nitschelm, C.; David, M. (2011). "An Investigation on Close Binaries in the Sco-Cen Complex". Evolution of Compact Binaries 447: 75. Bibcode: 2011ASPC..447...75N.
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