HD 193664

HD 193664
	Estrella de tipu-G de la secuencia principal y estrella con movimiento propio alto (es)
Datos d'observación
Ascensión reuta (α)	304,38053450309 °
Declinación (δ)	66,853689331402 °
Distancia a la Tierra	17,4653 pc
Magnitú aparente (V)	5,93 (banda V)
Magnitú absoluta	4,65
Constelación	Draco (es)
Velocidá de rotación	1,3 km/s, 5 km/s y 1,2 km/s
Velocidá radial	−4,33 km/s
Parallax	57,2564 mas
Carauterístiques físiques
Radiu	1,03 Radius solars
Masa	1,011 M☉
Gravedá superficial	27 000 cm/s²
Tipu espectral	G3V
Otros nomes
	Ver llista 2MASS J20173128+6651130 (2MASS (es) ); AG+66 948 (Astronomische Gesellschaft Katalog (es) ); ASCC 93038 (All-sky Compiled Catalogue (en) ); BD+66 1281 (Bonner Durchmusterung); GC 28252 (Boss General Catalogue (es) ); GCRV 12685 (General Catalogue of Stellar Radial Velocities (es) ); GJ 788 (Catálogu Gliese); HD 193664 (Catálogu Henry Draper); HIC 100017 (Hipparcos Input Catalogue (en) ); HIP 100017 (Catálogu Hipparcos); HR 7783 (Bright Star Catalogue); LFT 1539 (Luyten Five-Tenths catalogue (en) ); LHS 3537 (Luyten Half-Second catalogue (en) ); LSPM J2017+6651 (LSPM-NORTH catalog (en) ); LTT 15947 (Luyten Two-Tenths catalogue (en) ); NLTT 49062 (New Luyten Two-Tenths catalogue (en) ); PLX 4849 (General Catalogue of Trigonometric Stellar Parallaxes (es) ); PLX 4849.00 (General Catalogue of Trigonometric Stellar Parallaxes (es) ); PPM 22081 (Catálogo de estrellas PPM (es) ); SAO 18796 (Catálogu SAO); SPOCS 884 (Spectroscopic Properties of Cool Stars (en) ); TD1 26554 (TD1 Catalog of Stellar Ultraviolet Fluxes (en) ); TYC 4245-1794-1 (Tycho Catalogue (en) ); UBV 17636 (UBV Photoelectric Photometry Catalogue (en) ); UBV M 24757 (Photoelectric catalogue, magnitudes and colors of stars in the UBV and UCBV systems (en) ); uvby98 100193664 (uvbyβ Photoelectric Photometric Catalogue (en) ); DO 38284 (Dearborn Observatory Catalogue (en) ); Ci 20 1203 (Catalogue of proper motion stars (en) ); Gmb 3150 (New reduction of Groombridge's catalogue of circumpolar stars (en) ); WEB 18007 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue (en) ); Gaia DR2 2246581329639103872 (Gaia DR2 (es) );

Coordenaes: 20^h 17^m 31.328^s, 66^° 51^′ 13.282^″

HD 193664 (HR 7783 / HIP 100017 / GJ 788)^[6] ye una estrella na constelación de Draco, el dragón, de magnitú aparente +5,21. Alcuéntrase a 57,3 años lluz de distancia del Sistema Solar.

HD 193664 ye una nana mariella de tipu espectral G3V con una temperatura superficial de 5813 K. Ye una análoga solar de carauterístiques físiques similares a les del Sol. La midida direuta del so diámetru angular —0,494 milisegundos d'arcu—^[7] dexa calcular el so diámetru real; ésti ye daqué más pequeñu que'l del Sol, equivalente a un 93% del mesmu. Otra manera, la so lluminosidá ye un 18% mayor que la lluminosidá solar.^[8] La so bayura relativa de fierro equival al 76% de la esistente nel Sol.^[9] Sicasí, la rellación ente los conteníos d'oxíxenu y fierro ye un 48% mayor que nel Sol.^[10]

HD 193664 tien una edá envalorada de 4700 millones d'años,^[11] aproximao la mesma que'l Sol. El so metalicidá y cinemática, según el fechu de que nun se conoza nengún planeta xigante orbitando a menos de 2 UA —nun se tien constancia de qu'esista nengún planeta estrasolar—, favorecieron que figure ente los 25 oxetivos principales del Catálogu de Sistemes Estelares Habitables del Institutu SETI.^[12]

Referencies

↑ ^1,0 ^1,1 Afirmao en: SIMBAD.
↑ ^2,0 ^2,1 ^2,2 ^2,3 ^2,4 Afirmao en: Gaia DR2. Llingua de la obra o nome: inglés. Data d'espublización: 25 abril 2018.
↑ ^3,0 ^3,1 «Abundances in the Local Region II: F, G, and K Dwarfs and Subgiants». The Astronomical Journal (1). 21 avientu 2016. doi:10.3847/1538-3881/153/1/21.
↑ «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.
↑ «Spectral classification and photometry of high proper motion stars». The Astronomical Journal. 1967. doi:10.1086/110413.
↑ HD 193664 (SIMBAD)
↑ Boyajian, Tabetha S.; McAlister, Harold A.; Baines, Ellyn K.; Gies, Douglas R.; Henry, Todd; Jao, Wei-Chun; O'Brien, David; Raghavan, Deepak; Touhami, Yamina; ten Brummelaar, Theo A.; Farrington, Chris; Goldfinger, P. J.; Sturmann, Laszlo; Sturmann, Judit; Turner, Nils H.; Ridgway, Stephen (2008). «Angular Diameters of the G Subdwarf μ Cassiopeiae A and the K Dwarfs σ Draconis and HR 511 from Interferometric Measurements with the CHARA Array». The Astrophysical Journal 683 (1). pp. 424-432. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2008ApJ...683..424B&db_key=AST&nosetcookie=1.
↑ Takeda, Yoichi (2007). «Fundamental Parameters and Elemental Abundances of 160 F-G-K Stars Based on OAO Spectrum Database». Publications of the Astronomical Society of Japan 59 (2). pp. 335-356. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2007PASJ...59..335T&db_key=AST&nosetcookie=1.
↑ Ramírez, I.; Allende Prieto, C.; Lambert, D. L. (2007). «Oxygen abundances in nearby stars. Clues to the formation and evolution of the Galactic disk». Astronomy and Astrophysics 456 (1). pp. 271-289. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2007A%26A...465..271R&db_key=AST&nosetcookie=1.
↑ Soubiran, C.; Girard, P. (2005). «Abundance trends in kinematical groups of the Milky Way's disk». Astronomy and Astrophysics 438 (1). pp. 139-151. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2005A%26A...438..139S&db_key=AST&nosetcookie=1.
↑ D. E. Trilling, G. Bryden, C. A. Beichman, G. H. Rieke, K. Y. L. El so, J. A. Stansberry, M. Blaylock, K. R. Stapelfeldt, J. W. Beeman & E. E. Haller (2008). «Debris Disks around Sun-like Stars». The Astrophysical Journal 674 (2). pp. 1086-1105. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2008ApJ...674.1086T&db_key=AST&nosetcookie=1.
↑ M.C. Turnbull, J.C. Tarter (2003). «Target Selection for SETI. II. Tycho-2 Dwarfs, Old Open Clusters, and the Nearest 100 Stars». The Astrophysical Journal Supplement Series 149 (2): páxs. 423–436. doi:10.1086/379320. http://adsabs.harvard.edu/abs/2003ApJS..149..423T.

Coordenaes: 20^h 17^m 31.328^s, 66^° 51^′ 13.282^″

[8ba559d5760a03bedaaacc3c347bbfe4981560bf-1] 1,0 ^1,1 Afirmao en: SIMBAD.

[b64af6c056b6c5f6a7ea17156dcd718d4744bbf8-2] 2,0 ^2,1 ^2,2 ^2,3 ^2,4 Afirmao en: Gaia DR2. Llingua de la obra o nome: inglés. Data d'espublización: 25 abril 2018.

[c30dc072cba1cfbcdae32e884a7fbd44d1d93767-3] 3,0 ^3,1 «Abundances in the Local Region II: F, G, and K Dwarfs and Subgiants». The Astronomical Journal (1). 21 avientu 2016. doi:10.3847/1538-3881/153/1/21.

[12f099475898f6cd6c26d6744a35c9b130e561e0-4] «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.

[aa45ce87747f2b9e196688a45c76843a9a572af6-5] «Spectral classification and photometry of high proper motion stars». The Astronomical Journal. 1967. doi:10.1086/110413.

[6] HD 193664 (SIMBAD)

[7] Boyajian, Tabetha S.; McAlister, Harold A.; Baines, Ellyn K.; Gies, Douglas R.; Henry, Todd; Jao, Wei-Chun; O'Brien, David; Raghavan, Deepak; Touhami, Yamina; ten Brummelaar, Theo A.; Farrington, Chris; Goldfinger, P. J.; Sturmann, Laszlo; Sturmann, Judit; Turner, Nils H.; Ridgway, Stephen (2008). «Angular Diameters of the G Subdwarf μ Cassiopeiae A and the K Dwarfs σ Draconis and HR 511 from Interferometric Measurements with the CHARA Array». The Astrophysical Journal 683 (1). pp. 424-432. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2008ApJ...683..424B&db_key=AST&nosetcookie=1.

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

[Ramirez-9] Ramírez, I.; Allende Prieto, C.; Lambert, D. L. (2007). «Oxygen abundances in nearby stars. Clues to the formation and evolution of the Galactic disk». Astronomy and Astrophysics 456 (1). pp. 271-289. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2007A%26A...465..271R&db_key=AST&nosetcookie=1.

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

[11] D. E. Trilling, G. Bryden, C. A. Beichman, G. H. Rieke, K. Y. L. El so, J. A. Stansberry, M. Blaylock, K. R. Stapelfeldt, J. W. Beeman & E. E. Haller (2008). «Debris Disks around Sun-like Stars». The Astrophysical Journal 674 (2). pp. 1086-1105. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2008ApJ...674.1086T&db_key=AST&nosetcookie=1.

[12] M.C. Turnbull, J.C. Tarter (2003). «Target Selection for SETI. II. Tycho-2 Dwarfs, Old Open Clusters, and the Nearest 100 Stars». The Astrophysical Journal Supplement Series 149 (2): páxs. 423–436. doi:10.1086/379320. http://adsabs.harvard.edu/abs/2003ApJS..149..423T.

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