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Star in the constellation Aquila
51 Aquilae (abbreviated 51 Aql ) is a star in the equatorial constellation of Aquila . 51 Aquilae is its Flamsteed designation . It has an apparent visual magnitude of 5.39, which means it is faintly visible to the naked eye . Based upon an annual parallax shift of 35.88 mas , the distance to this star is around 90.9 light-years (27.9 parsecs ).
This is an F-type main sequence star with a stellar classification of F5 V Fe-1 CH-0.7; where the 'Fe-1' and 'CH-0.7' represent abundance deficiencies of iron and the molecule CN, respectively. It is about 1.6 billion years old and is spinning relatively quickly with a projected rotational velocity of 77.5 km/s. The outer atmosphere has an effective temperature of 6,812 K, giving it the yellow-white hue characteristic of an F-type star .
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 .
^ Corben, P. M.; Stoy, R. H. (1968), "Photoelectric Magnitudes and Colours for Bright Southern Stars", Monthly Notes of the Astronomical Society of Southern Africa , 27 : 11, Bibcode :1968MNSSA..27...11C .
^ Gray, R. O.; et al. (July 2006), "Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample", The Astronomical Journal 132 (1): 161–170, arXiv :astro-ph/0603770 , Bibcode :2006AJ....132..161G , doi :10.1086/504637 , S2CID 119476992 .
Wilson, Ralph Elmer (1953), "General Catalogue of Stellar Radial Velocities", Carnegie Institute Washington D.C. Publication , Washington: Carnegie Institution of Washington , Bibcode :1953GCRV..C......0W .
^ Holmberg, J.; Nordström, B.; Andersen, J. (July 2009), "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics", Astronomy and Astrophysics , 501 (3): 941–947, arXiv :0811.3982 , Bibcode :2009A&A...501..941H , doi :10.1051/0004-6361/200811191 , S2CID 118577511 .
^ Schröder, C.; Reiners, Ansgar; Schmitt, Jürgen H. M. M. (January 2009), "Ca II HK emission in rapidly rotating stars. Evidence for an onset of the solar-type dynamo" (PDF), Astronomy and Astrophysics , 493 (3): 1099–1107, Bibcode :2009A&A...493.1099S , doi :10.1051/0004-6361:200810377
"* 51 Aql" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2012-07-27."The Colour of Stars" , Australia Telescope, Outreach and Education , Commonwealth Scientific and Industrial Research Organisation , December 21, 2004, archived from the original on February 22, 2012, retrieved 2012-01-16
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