Astronomy:HD 153201
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Short description: Star in the constellation Ara
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Ara |
| Right ascension | 17h 01m 07.02279s[1] |
| Declination | −56° 33′ 18.2902″[1] |
| Apparent magnitude (V) | 6.38[2] |
| Characteristics | |
| Spectral type | B9 Si[3] |
| B−V color index | 0.06[2] |
| Variable type | α2 CVn |
| Astrometry | |
| Radial velocity (Rv) | 0.2[4] km/s |
| Proper motion (μ) | RA: −3.88[1] mas/yr Dec.: −27.06[1] mas/yr |
| Parallax (π) | 4.99 ± 0.71[1] mas |
| Distance | approx. 650 ly (approx. 200 pc) |
| Details | |
| Mass | 2.7[5] M☉ |
| Radius | 4.1[5] R☉ |
| Luminosity | 175[5] L☉ |
| Surface gravity (log g) | 3.63[5] cgs |
| Temperature | 10.342[5] K |
| Rotation | 27.15 days[6] |
| Rotational velocity (v sin i) | 45[7] km/s |
| Age | 186[8] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 153201 is a Bp star in the southern constellation of Ara. It is chemically peculiar star that displays an anomalous abundance of the element silicon in its spectrum.[3] This is a suspected variable star of the type known as Alpha² Canum Venaticorum.[9] There is a magnitude 9.86 companion star at an angular separation of 2.30″ along a position angle of 131°.[10]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 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.
- ↑ 2.0 2.1 Høg, E. et al. (2000), "The Tycho-2 catalogue of the 2.5 million brightest stars", Astronomy and Astrophysics 355: L27, doi:10.1888/0333750888/2862, Bibcode: 2000A&A...355L..27H.
- ↑ 3.0 3.1 Renson, P.; Manfroid, J. (May 2009), "Catalogue of Ap, HgMn and Am stars", Astronomy and Astrophysics 498 (3): 961–966, doi:10.1051/0004-6361/200810788, Bibcode: 2009A&A...498..961R, https://zenodo.org/record/890529
- ↑ 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.
- ↑ 5.0 5.1 5.2 5.3 5.4 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.
- ↑ Oelkers, Ryan J.; Rodriguez, Joseph E.; Stassun, Keivan G.; Pepper, Joshua; Somers, Garrett; Kafka, Stella; Stevens, Daniel J.; Beatty, Thomas G. et al. (2018). "Variability Properties of Four Million Sources in the TESS Input Catalog Observed with the Kilodegree Extremely Little Telescope Survey". The Astronomical Journal 155 (1): 39. doi:10.3847/1538-3881/aa9bf4. Bibcode: 2018AJ....155...39O.
- ↑ Levato, H.; Malaroda, S.; Morrell, N.; Solivella, G.; Grosso, M. (1996). "Radial velocities and axial rotation for a sample of chemically peculiar stars". Astronomy and Astrophysics Supplement Series 118 (2): 231. doi:10.1051/aas:1996192. Bibcode: 1996A&AS..118..231L.
- ↑ 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.
- ↑ Kukarkin, B. V. et al. (1981), "Nachrichtenblatt der Vereinigung der Sternfreunde e.V. (Catalogue of suspected variable stars)", Nachrichtenblatt der Vereinigung der Sternfreunde E.V. (1981) (Moscow: Academy of Sciences USSR Shternberg), Bibcode: 1981NVS...C......0K
- ↑ Mason, B. D. et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal 122 (6): 3466–3471, doi:10.1086/323920, Bibcode: 2001AJ....122.3466M, https://vizier.u-strasbg.fr/viz-bin/VizieR?-source=B/wds, retrieved 2015-07-22
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