19 Draconis

19 Draconis
	estrella de secuencia principal tipo F(es),Estrella binaria espectroscópica,suspected variable(en),estrella con movimiento propio alto(es),estrella doble(es),near-IR source(en),UV-emission source(en)yEstrella variable
Datos d'observación
Ascensión reuta(α)	254,00703853458 °
Declinación(δ)	65,13479531639 °
Distancia a la Tierra	15,3162 pc
Magnitú aparente(V)	4,88 (banda V)
Magnitú absoluta	3,98
Constelación	Draco(es)
Velocidá de rotación	13 km/s
Velocidá radial	−21,85 km/s
Parallax	66,2951 mas
Radiu	1,2 Radius solars
Gravedá superficial	21 400 cm/s²
Tipu espectral	F8V
Otros nomes
	Ver llista HD 153597 (Catálogu Henry Draper); HIP 82860 (Catálogu Hipparcos); HR 6315 (Bright Star Catalogue); IRAS 16557+6512 (IRAS(es)); 2MASS J16560170+6508054 (2MASS(es)); SAO 17281 (Catálogu SAO); GJ 648 (Catálogu Gliese); h Dra (Denominación de Bayer); 1RXS J165601.2+650807 (1RXS(en)); 2EUVE J1656+65.1 (The second Extreme Ultraviolet Explorer source catalog(en)); ASCC 87371 (All-sky Compiled Catalogue(en)); BD+65 1157 (Bonner Durchmusterung); CSV 101623 (Catalogue of suspected variable stars(en)); EUVE J1656+65.1 (The first Extreme Ultraviolet Explorer source catalog(en)); GC 22871 (Boss General Catalogue(es)); GCRV 9780 (General Catalogue of Stellar Radial Velocities(es)); HIC 82860 (Hipparcos Input Catalogue(en)); JP11 2805 (JP11(en)); LSPM J1656+6508 (LSPM-NORTH catalog(en)); LTT 15013 (Luyten Two-Tenths catalogue(en)); N30 3793 (Catalog of 5,268 Standard Stars Based on the Normal System N30(en)); NLTT 43914 (New Luyten Two-Tenths catalogue(en)); NSV 8078 (New Catalogue of Suspected Variable Stars(es)); PLX 3860 (General Catalogue of Trigonometric Stellar Parallaxes(es)); PLX 3860.00 (General Catalogue of Trigonometric Stellar Parallaxes(es)); PPM 20129 (Catálogo de estrellas PPM(es)); RBS 1612 (ROSAT All-Sky Survey Bright Source Catalogue(en)); ROT 2399 (Catalogue of rotational velocities of the stars(en)); TD1 19799 (TD1 Catalog of Stellar Ultraviolet Fluxes(en)); TYC 4197-2429-1 (Tycho Catalogue(en)); UBV 14369 (UBV Photoelectric Photometry Catalogue(en)); uvby98 100153597 (uvbyβ Photoelectric Photometric Catalogue(en)); [ZEH2003] RX J1656.0+6508 1 (The Hamburg/RASS Catalogue of optical identifications. Northern high-galactic latitude ROSAT Bright Source Catalogue X-ray sources(en)); SBC9 938 (Eighth catalogue of the orbital elements of spectroscopic binary systems(en)); RX J1656.0+6508 (X-ray survey of the Large Magellanic Cloud by ROSAT(en)); SBC7 603 (Seventh catalogue of the orbital elements of spectroscopic binary systems(en)); WEB 14005 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue(en)); Gaia DR2 1635375460141804800 (Gaia DR2(es)); 19 Dra (Denominación de Flamsteed(es)); EUVE J1655+65.1 (The first Extreme Ultraviolet Explorer source catalog(en)); Gaia DR3 1635375460142367104 (Gaia DR3(es)); UCAC4 776-033904 (Fourth USNO CCD Astrograph Catalog(en)); TIC 289622310 (TESS Input Catalog(en)); AG+65 793 (AGK3U(en)); UBV M 21845 (UBV Photoelectric Photometry Catalogue(en)); WDS J16564+6502C (Catálogo de Estrellas Dobles Washington(es));

Coordenaes:16^h56^m1.689^s,65^°8^′5.263^″

19 Draconis(19 Dra / HD 153597 / HR 6315)^[10]ye unaestrellanaconstelacióndelDragóndemagnitú aparente+4,88. Alcuéntrase a 49años lluzde distancia delSistema Solar.

19 Draconis ye una estrella mariella de lasecuencia principaldetipu espectralF6V.^[10] Al igual que'lSol,la so enerxía provién de lafusiónd'hidróxenuenheliu,pero ye más caliente y lluminosa qu'ésti. Con unatemperatura efectivod'aproximao 6300K,^[11]^[12]la solluminosidáye más del doble de lalluminosidá solar.^[11] Tien unametalicidá—bayura relativa d'elementos más pesaos que l'heliu— inferior a la del Sol; diversos estudios señalen una metalicidá ente'l 60% y el 83% de la que tien el Sol.^[13]^[11] Esti empobrecimientu ye más acusáu n'elementos comomagnesiuycobre.^[11] El radiu de 19 Draconis ye un 10% más grande que'l de la nuesa estrella^[14]y la so masa ye un 20% mayor que lamasa solar. Ye una estrella más nueva que'l Sol. Magar nun hai consensu sobre la so edá, ésta cífrase ente 1380^[11]y 3700 millones d'años.^[13]

19 Draconis ye unabinaria espectroscópica—que nun pudo serresueltaporinterferometría de moteáu— con unperiodu orbitalde 52,11 díes.^[15] Amás, ye posible que seya unavariabledel tipuDelta Scuti,magar esti aspeutu nun foi confirmáu.

Referencies

↑^1,0^1,1^1,2^1,3^1,4^1,5Afirmao en:SIMBAD.
↑Afirmao en:New Catalogue of Suspected Variable Stars.
↑^3,0^3,1Floor van Leeuwen (2007). «Validation of the new Hipparcos reduction»(n'inglés).Astronomy and Astrophysics(2): páxs. 653–664.doi:10.1051/0004-6361:20078357.
↑Afirmao en:Gaia EDR3.Stated in source according to:SIMBAD.Llingua de la obra o nome: inglés. Data d'espublización: 3 avientu 2020.
↑Ulrich Bastian (marzu 2000). «Catálogo Tycho-2».Astronomy and Astrophysics:páxs. L27-L30.
↑Hiroyasu Andō (25 febreru 2005). «High-Dispersion Spectra Collection of Nearby F–K Stars at Okayama Astrophysical Observatory: A Basis for Spectroscopic Abundance Standards».Publications of the Astronomical Society of Japan(1): páxs. 13-25.doi:10.1093/PASJ/57.1.13.
↑^7,0^7,1Afirmao en:Gaia DR2.Stated in source according to:SIMBAD.Llingua de la obra o nome: inglés. Data d'espublización: 25 abril 2018.
↑«Lithium abundance patterns of late-F stars: an in-depth analysis of the lithium desert»(n'inglés).Astronomy and Astrophysics:páxs. 55–55. 12 xunu 2018.doi:10.1051/0004-6361/201732209.
↑«MK CLASSIFICATIONS OF SPECTROSCOPIC BINARIES».The Astrophysical Journal Supplement Series(1): páxs. 117–118. 23 avientu 2008.doi:10.1088/0067-0049/180/1/117.
↑^10,0^10,1NSV 8078 - Spectroscopic binary(SIMBAD)
↑^11,0^11,1^11,2^11,3^11,4Takeda, Yoichi (2007). «Fundamental Parameters and Elemental Abundances of 160 F-G-K Stars Based on OAO Spectrum Database».Publications of the Astronomical Society of Japan59(2).pp. 335-356.http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2007PASJ...59..335T&db_key=AST&nosetcookie=1.
↑Soubiran, C.; Girard, P. (2005). «Abundance trends in kinematical groups of the Milky Way's disk».Astronomy and Astrophysics438(1).pp. 139-151.http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2005A%26A...438..139S&db_key=AST&nosetcookie=1.
↑^13,0^13,1Nordström, B.; Mayor, M.; Andersen, J.; Holmberg, J.; Pont, F.; Jørgensen, B. R.; Olsen, E. H.; Udry, S.; Mowlavi, N. (2004). «The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ˜14 000 F and G dwarfs».Astronomy and Astrophysics418.pp. 989-1019.http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2004A%26A...418..989N&db_key=AST&nosetcookie=1.
↑Catalogue of Stellar Diameters (CADARS)(VizieR,SIMBAD)
↑19 Draconis Archiváu2016-04-30 enWayback Machine(The Bright Star Catalogue)

Coordenaes:16^h56^m1.689^s,65^°8^′5.263^″

[8ba559d5760a03bedaaacc3c347bbfe4981560bf-1] 1,0^1,1^1,2^1,3^1,4^1,5Afirmao en:SIMBAD.

[758e3637600910188495a206e3f028d263af3dfe-2] Afirmao en:New Catalogue of Suspected Variable Stars.

[8edd049ced48440d6882cc10b733308727e81acc-3] 3,0^3,1Floor van Leeuwen (2007). «Validation of the new Hipparcos reduction»(n'inglés).Astronomy and Astrophysics(2): páxs. 653–664.doi:10.1051/0004-6361:20078357.

[88f46fab9cce60c7e274ff942763157775017282-4] Afirmao en:Gaia EDR3.Stated in source according to:SIMBAD.Llingua de la obra o nome: inglés. Data d'espublización: 3 avientu 2020.

[1cc6520fc51b10b72364c09aaaf51e0e9a8ee26b-5] Ulrich Bastian (marzu 2000). «Catálogo Tycho-2».Astronomy and Astrophysics:páxs. L27-L30.

[ef99749a6171b4648e12e663e74c79fc7212e72a-6] Hiroyasu Andō (25 febreru 2005). «High-Dispersion Spectra Collection of Nearby F–K Stars at Okayama Astrophysical Observatory: A Basis for Spectroscopic Abundance Standards».Publications of the Astronomical Society of Japan(1): páxs. 13-25.doi:10.1093/PASJ/57.1.13.

[930587e73b5b66c983eb1a1b6178ebadc15ac870-7] 7,0^7,1Afirmao en:Gaia DR2.Stated in source according to:SIMBAD.Llingua de la obra o nome: inglés. Data d'espublización: 25 abril 2018.

[a25e31966413e2c0e746070f66229cd2d844056f-8] «Lithium abundance patterns of late-F stars: an in-depth analysis of the lithium desert»(n'inglés).Astronomy and Astrophysics:páxs. 55–55. 12 xunu 2018.doi:10.1051/0004-6361/201732209.

[63d4d2d9ea8c462b0b5c5477332bac566658e835-9] «MK CLASSIFICATIONS OF SPECTROSCOPIC BINARIES».The Astrophysical Journal Supplement Series(1): páxs. 117–118. 23 avientu 2008.doi:10.1088/0067-0049/180/1/117.

[SIMBAD-10] 10,0^10,1NSV 8078 - Spectroscopic binary(SIMBAD)

[Takeda-11] 11,0^11,1^11,2^11,3^11,4Takeda, Yoichi (2007). «Fundamental Parameters and Elemental Abundances of 160 F-G-K Stars Based on OAO Spectrum Database».Publications of the Astronomical Society of Japan59(2).pp. 335-356.http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2007PASJ...59..335T&db_key=AST&nosetcookie=1.

[Soubiran2005-12] Soubiran, C.; Girard, P. (2005). «Abundance trends in kinematical groups of the Milky Way's disk».Astronomy and Astrophysics438(1).pp. 139-151.http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2005A%26A...438..139S&db_key=AST&nosetcookie=1.

[Geneva-Copenhagen-13] 13,0^13,1Nordström, B.; Mayor, M.; Andersen, J.; Holmberg, J.; Pont, F.; Jørgensen, B. R.; Olsen, E. H.; Udry, S.; Mowlavi, N. (2004). «The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ˜14 000 F and G dwarfs».Astronomy and Astrophysics418.pp. 989-1019.http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2004A%26A...418..989N&db_key=AST&nosetcookie=1.

[14] Catalogue of Stellar Diameters (CADARS)(VizieR,SIMBAD)

[15] 19 Draconis Archiváu2016-04-30 enWayback Machine(The Bright Star Catalogue)

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