14 Aquilae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquila |
| Right ascension | 19h 02m 54.49874s[1] |
| Declination | –03° 41′ 56.3561″[1] |
| Apparent magnitude (V) | 5.42[2] |
| Characteristics | |
| Spectral type | A1 V[3] |
| U−B color index | –0.07[2] |
| B−V color index | +0.00[2] |
| Astrometry | |
| Radial velocity (Rv) | –39[4] km/s |
| Proper motion (μ) | RA: +11.68[1] mas/yr Dec.: +6.40[1] mas/yr |
| Parallax (π) | 6.53 ± 0.83[1] mas |
| Distance | approx. 500 ly (approx. 150 pc) |
| Details | |
| Radius | 2.0[5] R☉ |
| Rotational velocity (v sin i) | 23[6] km/s |
| Other designations | |
14 Aquilae (abbreviated 14 Aql) is a single[8] star in the equatorial constellation of Aquila. 12 Aquilae is the Flamsteed designation though it also bears the Bayer designation g Aquilae. Its apparent magnitude is 5.42[2] and it is located at a distance of approximately 500 light-years (150 parsecs) from Earth. This is an A-type main sequence star with a stellar classification of A1 V.[3] It is about twice the radius of the Sun and has a high rate of rotation with a projected rotational velocity of 23 km/s.[6]
References
- 1 2 3 4 5 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. - 1 2 3 4 Nicolet, B. (1978). "Photoelectric photometric Catalogue of homogeneous measurements in the UBV System". Astronomy and Astrophysics Supplement Series. 34: 1–49. Bibcode:1978A&AS...34....1N.
- 1 2 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.
- ↑ Wilson, Ralph Elmer (1953). "General catalogue of stellar radial velocities". Carnegie Institution of Washington. Bibcode:1953GCRV..C......0W.
- ↑ Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics", Astronomy and Astrophysics, 367: 521–524, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451.
- 1 2 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.
- ↑ "g Aql -- Star", SIMBAD Astronomical Object Database, Centre de Données astronomiques de Strasbourg, retrieved 2012-07-22.
- ↑ 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. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x.
External links
This article is issued from Wikipedia - version of the 6/6/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.