Astronomy:10 Boötis
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Boötes |
| Right ascension | 13h 58m 38.92101s[1] |
| Declination | +21° 41′ 46.3302″[1] |
| Apparent magnitude (V) | 5.76[2] |
| Characteristics | |
| Evolutionary stage | main sequence[3] |
| Spectral type | A0 Vs[4] |
| B−V color index | −0.002±0.004[2] |
| Astrometry | |
| Radial velocity (Rv) | +6.1±2.9[5] km/s |
| Proper motion (μ) | RA: −3.641[1] mas/yr Dec.: −42.535[1] mas/yr |
| Parallax (π) | 6.1741 ± 0.1059 mas |
| Distance | 528 ± 9 ly (162 ± 3 pc) |
| Absolute magnitude (MV) | −0.01[2] |
| Details | |
| Mass | 2.87±0.14[3] M☉ |
| Radius | 2.7[6] R☉ |
| Luminosity | 113+32 −25[3] L☉ |
| Temperature | 9441±108[3] K |
| Rotational velocity (v sin i) | 75[3] km/s |
| Age | 337[2] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
10 Boötis is a suspected astrometric binary[8] star system in the northern constellation of Boötes,[7] located around 528 light years away from the Sun. It is visible to the naked eye under suitable viewing conditions as a dim, white-hued star with an apparent visual magnitude of 5.76.[2] Its magnitude is diminished by an extinction of 0.17 due to interstellar dust.[9] This system is moving away from the Earth with a heliocentric radial velocity of +6 km/s.[5]
The visible component is an ordinary A-type main-sequence star with a stellar classification of A0 Vs,[4] where the 's' notation indicates "sharp" absorption lines. It is 337[2] million years old with a moderate rotation rate, showing a projected rotational velocity of 75 km/s.[3] The star has 2.87[3] times the mass of the Sun and about 2.7[6] times the Sun's radius. It is radiating 113[3] times the Sun's luminosity from its photosphere at an effective temperature of 9,441 K.[3]
References
- ↑ 1.0 1.1 1.2 1.3 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.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 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 3.2 3.3 3.4 3.5 3.6 3.7 3.8 Zorec, J. et al. (2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy and Astrophysics 537: A120, doi:10.1051/0004-6361/201117691, Bibcode: 2012A&A...537A.120Z
- ↑ 4.0 4.1 Cowley, A. et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal 74: 375–406, doi:10.1086/110819, Bibcode: 1969AJ.....74..375C.
- ↑ 5.0 5.1 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 Pasinetti Fracassini, L. E. et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics 367 (2): 521–524, doi:10.1051/0004-6361:20000451, Bibcode: 2001A&A...367..521P.
- ↑ 7.0 7.1 "10 Boo". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=10+Boo.
- ↑ 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.
- ↑ 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.
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