astro.wikisort.org - Star68 Aquilae (abbreviated 68 Aql) is a double star in the equatorial constellation of Aquila. 68 Aquilae is its Flamsteed designation. Its apparent magnitude is 6.12.
Star in the constelltion Aquila
68 Aquilae
Observation data Epoch J2000 Equinox J2000 |
Constellation |
Aquila |
Right ascension |
20h 28m 24.90515s[1] |
Declination |
–03° 21′ 28.0518″[1] |
Apparent magnitude (V) |
6.12[2] |
Characteristics |
Evolutionary stage |
main sequence[3] |
Spectral type |
B9 V[2] |
U−B color index |
–0.20[2] |
B−V color index |
–0.06[2] |
Astrometry |
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Radial velocity (Rv) | –9[4] km/s |
Proper motion (μ) | RA: +27.02[1] mas/yr Dec.: –20.53[1] mas/yr |
Parallax (π) | 5.41 ± 0.42 mas[1] |
Distance | 600 ± 50 ly (180 ± 10 pc) |
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Details |
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Mass | 3.16±0.12[3] M☉ |
Luminosity | 159.8+29.9 −25.2[3] L☉ |
Temperature | 10,641+50 −49[3] K |
Rotational velocity (v sin i) | 138[5] km/s |
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Other designations |
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Database references |
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SIMBAD | data |
References
- van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357, S2CID 18759600.
- Cowley, A.; et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal, 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819.
- Zorec, J.; Royer, F. (2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy & Astrophysics, 537: A120, arXiv:1201.2052, Bibcode:2012A&A...537A.120Z, doi:10.1051/0004-6361/201117691, S2CID 55586789.
- Evans, D. S. (June 20–24, 1966), "The Revision of the General Catalogue of Radial Velocities", in Batten, Alan Henry; Heard, John Frederick (eds.), Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, University of Toronto: International Astronomical Union, Bibcode:1967IAUS...30...57E.
- Royer, F.; Zorec, J.; Gómez, A. E. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics, 463 (2): 671–682, arXiv:astro-ph/0610785, Bibcode:2007A&A...463..671R, doi:10.1051/0004-6361:20065224, S2CID 18475298.
- "68 Aql -- Star in double system", SIMBAD, Centre de Données astronomiques de Strasbourg, retrieved 2012-07-26.
External links
Constellation of Aquila |
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Nebulae | |
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