Astronomy:HD 153053
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Short description: Star in the constellation Ara
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Ara[1] |
| Right ascension | 17h 00m 06.27939s[2] |
| Declination | −54° 35′ 49.8371″[2] |
| Apparent magnitude (V) | 5.65[3] |
| Characteristics | |
| Evolutionary stage | main sequence[4] |
| Spectral type | A5 IV-V[5] |
| U−B color index | 0.1 |
| B−V color index | +0.19[3] |
| Astrometry | |
| Radial velocity (Rv) | −20.2[6] km/s |
| Proper motion (μ) | RA: −7.70[2] mas/yr Dec.: −72.18[2] mas/yr |
| Parallax (π) | 19.30 ± 0.35[2] mas |
| Distance | 169 ± 3 ly (51.8 ± 0.9 pc) |
| Absolute magnitude (MV) | +2.07[1] |
| Details | |
| Mass | 1.8[7] M☉ |
| Luminosity | 12.3[7] L☉ |
| Temperature | 8,000[7] K |
| Rotational velocity (v sin i) | 102.8±0.7[8] km/s |
| Age | 420[7] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 153053 is double star in the southern constellation of Ara. The brighter component is an A-type main sequence star that may be evolving into a subgiant.[5] It has a twelfth magnitude visual companion at an angular separation of 24.7″ along a position angle of 52°.[9] Mostly likely the two are isolated stars that happen to lie near the same line of sight.[10]
This star displays an excess emission of infrared radiation, suggesting the presence of a disk of dusty debris. This disk is orbiting at a radius of 49 AU from the host star.[7]
References
- ↑ 1.0 1.1 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 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.
- ↑ 3.0 3.1 Johnson, H. L. et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory 4 (99): 99, Bibcode: 1966CoLPL...4...99J
- ↑ Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 5.0 5.1 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
- ↑ Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters 32 (11): 759–771. doi:10.1134/S1063773706110065. Bibcode: 2006AstL...32..759G.
- ↑ 7.0 7.1 7.2 7.3 7.4 Wyatt, M. C. et al. (July 2007), "Steady State Evolution of Debris Disks around A Stars", The Astrophysical Journal 663 (1): 365–382, doi:10.1086/518404, Bibcode: 2007ApJ...663..365W.
- ↑ Díaz, C. G. et al. (July 2011), "Accurate stellar rotational velocities using the Fourier transform of the cross correlation maximum", Astronomy & Astrophysics 531: A143, doi:10.1051/0004-6361/201016386, Bibcode: 2011A&A...531A.143D
- ↑ Mason, B. D. et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal 122 (6): 3466, doi:10.1086/323920, Bibcode: 2001AJ....122.3466M, http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=B/wds, retrieved 2015-07-22
- ↑ 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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