14 Aquilae

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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
g Aquilae, BD–03 4460, HD 176984, HIP 93526, HR 7209, 14 Aql, SAO 142959.[7]

14 Aquilae is the Flamsteed designation for a single[8] star in the equatorial constellation of Aquila. It has 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[edit]

  1. ^ a b c d e 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. 
  2. ^ a b c d 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. 
  3. ^ a b 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. 
  4. ^ Wilson, Ralph Elmer (1953). General catalogue of stellar radial velocities. Carnegie Institution of Washington. Bibcode:1953QB901.W495..... 
  5. ^ 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. 
  6. ^ a b 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. 
  7. ^ "g Aql -- Star", SIMBAD Astronomical Object Database (Centre de Données astronomiques de Strasbourg), retrieved 2012-07-22. 
  8. ^ 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[edit]