Xi Bootis

Xi Bootis
	estrella, estrella variable eruptiva (es) , near-IR source (en) y UV-emission source (en)
Datos d'observación
Ascensión reuta (α)	222,847416372 °
Declinación (δ)	19,100472048 °
Magnitú aparente (V)	4,593 (banda V)
Constelación	Bootes
Velocidá de rotación	3,26 km/s
Velocidá radial	1,39 km/s
Parallax	148,98 mas
Radiu	0,83 Radius solars
Gravedá superficial	34 000 cm/s²
Tipu espectral	G7 V
Otros nomes
	Ver llista SAO 101250 (Catálogu SAO); 2MASS J14512328+1906034 (2MASS (es) ); HD 131156 (Catálogu Henry Draper); HIP 72659 (Catálogu Hipparcos); HR 5544 (Bright Star Catalogue); IRAS 14490+1918 (IRAS (es) ); GJ 566 (Catálogu Gliese); ξ Boo (Denominación de Bayer); ADS 9413 AB (Aitken Double Star Catalogue (en) ); 1ES 1449+19.3 (Einstein Slew survey, Version No. 1 (en) ); CCDM J14513+1906AB (Catalog of Components of Double and Multiple Stars (en) ); IDS 14468+1931 AB (Index Catalogue of Visual Double Stars (en) ); PLX 3360 (General Catalogue of Trigonometric Stellar Parallaxes (es) ); LSPM J1451+1906 (LSPM-NORTH catalog (en) ); ASCC 871237 (All-sky Compiled Catalogue (en) ); BD+19 2870 (Bonner Durchmusterung); GC 19991 (Boss General Catalogue (es) ); HIC 72659 (Hipparcos Input Catalogue (en) ); IRC +20276 (Two-Micron Sky Survey (en) ); JP11 2546 (JP11 (en) ); N30 3355 (Catalog of 5,268 Standard Stars Based on the Normal System N30 (en) ); PPM 130930 (Catálogo de estrellas PPM (es) ); RBS 1439 (ROSAT All-Sky Survey Bright Source Catalogue (en) ); ROT 2124 (Catalogue of rotational velocities of the stars (en) ); TD1 17778 (TD1 Catalog of Stellar Ultraviolet Fluxes (en) ); UBV 12367 (UBV Photoelectric Photometry Catalogue (en) ); UBV 12949 (UBV Photoelectric Photometry Catalogue (en) ); uvby98 100131156 ABV (uvbyβ Photoelectric Photometric Catalogue (en) ); WDS J14514+1906AB (Catálogo de Estrellas Dobles Washington (es) ); 1RXS J145123.1+190606 (1RXS (en) ); EUVE J1451+19.1 (The first Extreme Ultraviolet Explorer source catalog (en) ); ksi Boo (General Catalogue of Variable Stars); 2EUVE J1451+19.1 (The second Extreme Ultraviolet Explorer source catalog (en) ); SPOCS 621 (Spectroscopic Properties of Cool Stars (en) ); SPOCS 2890 (Spectroscopic Properties of Cool Stars (en) ); [GKL99] 307 (Catalogue and bibliography of the UV Cet-type flare stars and related objects in the solar vicinity (en) ); RX J1451.3+1905 (X-ray survey of the Large Magellanic Cloud by ROSAT (en) ); RX J1451.3+1906 (X-ray survey of the Large Magellanic Cloud by ROSAT (en) ); [ZEH2003] RX J1451.3+1906 1 (The Hamburg/RASS Catalogue of optical identifications. Northern high-galactic latitude ROSAT Bright Source Catalogue X-ray sources (en) ); WEB 12488 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue (en) ); 37 Boo (Denominación de Flamsteed (es) ); TIC 311180437 (TESS Input Catalog (en) ); AG+19 1391 (AGK3U (en) );

Xi Bootis (ξ Boo / 37 Bootis / HD 131156) ye una estrella binaria de magnitú aparente +4,55 na constelación de Boötes, el pastor de gües. Alcuéntrase a namái 22 años lluz de distancia del Sistema Solar y forma parte de la corriente d'estrelles de l'Asociación estelar del sietestrellu. La estrella conocida más cercana a Xi Bootis ye Gliese 526, distante 6,9 años lluz.^[8]

Coordenaes: 14^h 51^m 23.38^s, 19^° 6^′ 1.699^″

La estrella principal del sistema, Xi Bootis A (GJ 566 A), ye una nana mariella de tipu espectral G8V,^[9] daqué más fría y menos lluminosa que'l Sol. La so temperatura superficial ye de 5130 K y la so lluminosidá ye la metá de la que tien el Sol. La so masa (ente 0,90 y 0,94 mases solares) y el so radiu (0,89 radios solares) revelen una estrella daqué más pequeña que'l Sol, pero que la so edá paez ser significativamente menor, entendida ente 60 y 1000 millones d'años. Presenta intensa actividá cromosférica y ye una estrella variable BY Draconis, con una variación de 0,15 magnitúes a lo llargo d'un ciclu de 10,137 díes.^[10]

La estrella secundaria, Xi Bootis B (GJ 566 B), ye una nana naranxa de tipu K4V^[11] con una masa en redol al 70% de la masa solar y un radiu'l 71% de la solar. La so lluminosidá ye namái'l 6,1% de la del Sol. La separación ente dambes estrelles fluctúa ente 16,5 y 50,7 UA nuna órbita escéntrica na qu'empleguen unos 152 años en completar.^[8]

Pequeñes variaciones na velocidá orbital de Xi Bootis B pueden debese a la esistencia d'un tercer cuerpu con una masa ente 1 y 9 vegaes la masa de Xúpiter orbitando alredor d'esta estrella.^[12]

Ver tamién

Llista d'estrelles brilloses más cercanes

Referencies

↑ ^1,0 ^1,1 ^1,2 ^1,3 Afirmao en: SIMBAD.
↑ ^2,0 ^2,1 ^2,2 Floor van Leeuwen (2007). «Validation of the new Hipparcos reduction» (n'inglés). Astronomy and Astrophysics (2): páxs. 653–664. doi:10.1051/0004-6361:20078357.
↑ «Photometric and astrometric observations of close visual binaries». Astronomy and Astrophysics: páxs. 221–235. 1982.
↑ D. Montes (setiembre 2010). «Chromospheric activity and rotation of FGK stars in the solar vicinity» (n'inglés). Astronomy and Astrophysics: páxs. 79–79. doi:10.1051/0004-6361/200913725.
↑ D. Montes (ochobre 2010). «A spectroscopy study of nearby late-type stars, possible members of stellar kinematic groups» (n'inglés). Astronomy and Astrophysics: páxs. A12. doi:10.1051/0004-6361/201014948.
↑ «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.
↑ Christopher J. Corbally (ochobre 2003). «Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I» (n'inglés). The Astronomical Journal (4): páxs. 2048–2059. doi:10.1086/378365.
↑ ^8,0 ^8,1 Xi Bootis (Solstation)
↑ GJ 566 A - Star in double system (SIMBAD)
↑ Xi Bootis Archiváu 2016-03-04 en Wayback Machine (The Bright Star Catalogue)
↑ GJ 566 B - Star in double system (SIMBAD)
↑ Campbell, B., Walker, G. A. H., & Yang, S. (1988). «A search for substellar companions to solar-type stars». Astrophysical Journal 331. páxs. 902-921. http://articles.adsabs.harvard.edu//full/1988ApJ...331..902C/0000902.000.html.

Coordenaes: 14^h 51^m 23.38^s, 19^° 6^′ 1.699^″

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

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

[616fac30a0a5e6a877c182c1bd6cf700df0e722b-3] «Photometric and astrometric observations of close visual binaries». Astronomy and Astrophysics: páxs. 221–235. 1982.

[fc02df9e2b12982117dbed1cc3199846d14e2ee0-4] D. Montes (setiembre 2010). «Chromospheric activity and rotation of FGK stars in the solar vicinity» (n'inglés). Astronomy and Astrophysics: páxs. 79–79. doi:10.1051/0004-6361/200913725.

[8f77a8d5271bff4286cfae5f5d4d9200998b78ec-5] D. Montes (ochobre 2010). «A spectroscopy study of nearby late-type stars, possible members of stellar kinematic groups» (n'inglés). Astronomy and Astrophysics: páxs. A12. doi:10.1051/0004-6361/201014948.

[a25e31966413e2c0e746070f66229cd2d844056f-6] «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.

[8360dbea0ef9fe8581f5aca007f2501375320f28-7] Christopher J. Corbally (ochobre 2003). «Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I» (n'inglés). The Astronomical Journal (4): páxs. 2048–2059. doi:10.1086/378365.

[SS-8] 8,0 ^8,1 Xi Bootis (Solstation)

[9] GJ 566 A - Star in double system (SIMBAD)

[10] Xi Bootis Archiváu 2016-03-04 en Wayback Machine (The Bright Star Catalogue)

[11] GJ 566 B - Star in double system (SIMBAD)

[12] Campbell, B., Walker, G. A. H., & Yang, S. (1988). «A search for substellar companions to solar-type stars». Astrophysical Journal 331. páxs. 902-921. http://articles.adsabs.harvard.edu//full/1988ApJ...331..902C/0000902.000.html.

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Xi Bootis
estrella^[1], estrella variable eruptiva ^(es) ^[1], near-IR source ^(en) ^[1] y UV-emission source ^(en) ^[1]
Datos d'observación
Ascensión reuta (α)	222,847416372 °^[2]
Declinación (δ)	19,100472048 °^[2]
Magnitú aparente (V)	4,593 (banda V)
Constelación	Bootes
Velocidá de rotación	3,26 km/s^[4]
Velocidá radial	1,39 km/s^[5]
Parallax	148,98 mas^[2]
Radiu	0,83 Radius solars
Gravedá superficial	34 000 cm/s²^[6]
Tipu espectral	G7 V^[7]
Otros nomes
Ver llista SAO 101250 (Catálogu SAO) 2MASS J14512328+1906034 (2MASS ^(es) ) HD 131156 (Catálogu Henry Draper) HIP 72659 (Catálogu Hipparcos) HR 5544 (Bright Star Catalogue) IRAS 14490+1918 (IRAS ^(es) ) GJ 566 (Catálogu Gliese) ξ Boo (Denominación de Bayer) ADS 9413 AB (Aitken Double Star Catalogue ^(en) ) 1ES 1449+19.3 (Einstein Slew survey, Version No. 1 ^(en) ) CCDM J14513+1906AB (Catalog of Components of Double and Multiple Stars ^(en) ) IDS 14468+1931 AB (Index Catalogue of Visual Double Stars ^(en) ) PLX 3360 (General Catalogue of Trigonometric Stellar Parallaxes ^(es) ) LSPM J1451+1906 (LSPM-NORTH catalog ^(en) ) ASCC 871237 (All-sky Compiled Catalogue ^(en) ) BD+19 2870 (Bonner Durchmusterung) GC 19991 (Boss General Catalogue ^(es) ) HIC 72659 (Hipparcos Input Catalogue ^(en) ) IRC +20276 (Two-Micron Sky Survey ^(en) ) JP11 2546 (JP11 ^(en) ) N30 3355 (Catalog of 5,268 Standard Stars Based on the Normal System N30 ^(en) ) PPM 130930 (Catálogo de estrellas PPM ^(es) ) RBS 1439 (ROSAT All-Sky Survey Bright Source Catalogue ^(en) ) ROT 2124 (Catalogue of rotational velocities of the stars ^(en) ) TD1 17778 (TD1 Catalog of Stellar Ultraviolet Fluxes ^(en) ) UBV 12367 (UBV Photoelectric Photometry Catalogue ^(en) ) UBV 12949 (UBV Photoelectric Photometry Catalogue ^(en) ) uvby98 100131156 ABV (uvbyβ Photoelectric Photometric Catalogue ^(en) ) WDS J14514+1906AB (Catálogo de Estrellas Dobles Washington ^(es) ) 1RXS J145123.1+190606 (1RXS ^(en) ) EUVE J1451+19.1 (The first Extreme Ultraviolet Explorer source catalog ^(en) ) ksi Boo (General Catalogue of Variable Stars) 2EUVE J1451+19.1 (The second Extreme Ultraviolet Explorer source catalog ^(en) ) SPOCS 621 (Spectroscopic Properties of Cool Stars ^(en) ) SPOCS 2890 (Spectroscopic Properties of Cool Stars ^(en) ) [GKL99] 307 (Catalogue and bibliography of the UV Cet-type flare stars and related objects in the solar vicinity ^(en) ) RX J1451.3+1905 (X-ray survey of the Large Magellanic Cloud by ROSAT ^(en) ) RX J1451.3+1906 (X-ray survey of the Large Magellanic Cloud by ROSAT ^(en) ) [ZEH2003] RX J1451.3+1906 1 (The Hamburg/RASS Catalogue of optical identifications. Northern high-galactic latitude ROSAT Bright Source Catalogue X-ray sources ^(en) ) WEB 12488 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue ^(en) ) 37 Boo (Denominación de Flamsteed ^(es) ) TIC 311180437 (TESS Input Catalog ^(en) ) AG+19 1391 (AGK3U ^(en) )