19 Aquilae

Star in the constellation Aquila 230px Image captured from Mount Laguna, California J2000.0 Aquila 19 08 59.91479 +06 04 23.5840 5.227 main sequence F0 III-IV U 5.59 0.010 B 5.57 0.007 V 5.23 0.009 +0.345 +0.020 suspected γ Dor −46.7 −13.024 −80.085 21.0662 0.3703 1.94 1.50 2.46 12.4 3.83 6,906 +0.03 57.0 2.25 19 Sge +05°4040 3530 178596 94068 7266 124318 19+Aql 19 Aquilae is a single star located 142 ly pc off on away from the Sun in the equatorial constellation of Aquila. 19 Aquilae is the Flamsteed designation. It is visible to the naked eye as a dim, yellow-white hued star with an apparent visual magnitude of 5.23. The star is moving closer to the Earth with a heliocentric radial velocity of −46.7 km/s. This object has a stellar classification of F0 III-IV, with the luminosity class matching an evolving star transitioning from the subgiant to a giant stage. Poretti et al. (2003) list it as a suspected Gamma Doradus variable, and it is located near the cooler end of the instability strip on the Hertzsprung–Russell diagram. These spatial coordinates are a source of X-ray emission, which is most likely coming from the star. 19 Aquilae is an estimated 2.25 billion years old with a moderately high rate of spin, showing a projected rotational velocity of 57.0 km/s. It has 1.5 times the mass of the Sun and 2.5 times the Sun's radius. The star is radiating 12.4 times the luminosity of the Sun from its photosphere at an effective temperature of commas 6906 K. References 4305679773377634944 19 Aql 2019-05-30 Stassun Keivan G. Oelkers Ryan J. Paegert Martin Torres Guillermo Pepper Joshua De Lee Nathan Collins Kevin Latham David W. Muirhead Philip S. Chittidi Jay Rojas-Ayala Bárbara Fleming Scott W. Rose Mark E. Tenenbaum Peter Ting Eric B. Kane Stephen R. Barclay Thomas Bean Jacob L. Brassuer C. E. Charbonneau David Ge Jian Lissauer Jack J. Mann Andrew W. McLean Brian Mullally Susan Narita Norio Plavchan Peter Ricker George R. Sasselov Dimitar Seager S. 1 The Revised TESS Input Catalog and Candidate Target List The Astronomical Journal 2019 158 4 138 10.3847/1538-3881/ab3467 free 1905.10694 2019AJ....158..138S Balachandran Suchitra Lithium depletion and rotation in main-sequence stars Astrophysical Journal, Part 1 354 May 1, 1990 310–332 10.1086/168691 1990ApJ...354..310B 1 Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions Veröffentlichungen Astronomisches Rechen-Institut Heidelberg Wielen R. Schwan H. Dettbarn C. Lenhardt H. Jahreiß H. Jährling R. Astronomisches Rechen-Institut Heidelberg 35 1999 35 1 1999VeARI..35....1W Schröder C. Reiners Ansgar Schmitt Jürgen H. M. M. Ca II HK emission in rapidly rotating stars. Evidence for an onset of the solar-type dynamo Astronomy and Astrophysics 493 3 1099–1107 January 2009 10.1051/0004-6361:200810377 2009A&A...493.1099S free http://goedoc.uni-goettingen.de/goescholar/bitstream/handle/1/9690/aa10377-08.pdf?sequence=2 2018-11-04 2017-09-22 https://web.archive.org/web/20170922162905/https://goedoc.uni-goettingen.de/bitstream/handle/1/9690/aa10377-08.pdf?sequence=2 dead Oja T. UBV photometry of stars whose positions are accurately known. III Astronomy and Astrophysics Supplement Series 65 2 405–4 1986A&AS...65..405O 1986 1 Holmberg J. Nordström B. Andersen J. The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics 501 3 July 2009 941–947 10.1051/0004-6361/200811191 free Astronomy and Astrophysics 2009A&A...501..941H 0811.3982 118577511 1 Poretti E. Garrido R. Amado P. J. Uytterhoeven K. Handler G. Alonso R. Martín S. Aerts C. Catala C. Goupil M. J. Michel E. Mantegazza L. Mathias P. Pretorius M. L. Belmonte J. A. Claret A. Rodríguez E. Suarez J. C. Vuthela F. F. Weiss W. W. Ballereau D. Bouret J. C. Charpinet S. Hua T. Lüftinger T. Nesvacil N. Van't Veer-Menneret C. Preparing the COROT space mission: Incidence and characterisation of pulsation in the lower instability strip Astronomy and Astrophysics 406 203–211 2003 10.1051/0004-6361:20030711 free 2003A&A...406..203P astro-ph/0304422 13047725 Abundances in the Local Region. I. G and K Giants Luck R. Earle Astronomical Journal 150 3 88 2015 1507.01466 2015AJ....150...88L 10.1088/0004-6256/150/3/88 118505114 Oja T. UBV photometry of stars whose positions are accurately known. VII Astronomy and Astrophysics Supplement Series 0365-0138 100 3 591–592 September 1993 1993A&AS..100..591O Oja T. UBV photometry of stars whose positions are accurately known Astronomy and Astrophysics Supplement Series 57 357 1984 1984A&AS...57..357O A catalogue of multiplicity among bright stellar systems Eggleton P. P. Tokovinin A. A. Monthly Notices of the Royal Astronomical Society 389 2 869 2008 10.1111/j.1365-2966.2008.13596.x free 0806.2878 2008MNRAS.389..869E 14878976 Haakonsen Christian Bernt Rutledge Robert E. XID II: Statistical Cross-Association of ROSAT Bright Source Catalog X-ray Sources with 2MASS Point Source Catalog Near-Infrared Sources The Astrophysical Journal Supplement 184 1 138–151 September 2009 10.1088/0067-0049/184/1/138 2009ApJS..184..138H 0910.3229 119267456 Category:F-type giants Category:F-type subgiants Category:Gamma Doradus variables Category:Suspected variables Category:Aquila (constellation) BD+05 4040 Aquilae, 19 178596 094068 7266