Ras Alhague

Ras Alhague
	estrella de navegación, near-IR source (en) y UV-emission source (en)
Datos d'observación
Ascensión reuta (α)	263,73362272 °
Declinación (δ)	12,560037392 °
Magnitú aparente (V)	2,07 (banda V)
Magnitú absoluta	1,248
Constelación	Ofiucu
Velocidá de rotación	228 km/s
Velocidá radial	11,7 km/s
Parallax	67,13 mas
Radiu	2,6 Radius solars
Diámetru	4 130 000 km
Gravedá superficial	7800 cm/s²
Tipu espectral	A5IVnn
Otros nomes
	Ver llista 2MASS J17345606+1233361 (2MASS (es) ); HD 159561 (Catálogu Henry Draper); HIP 86032 (Catálogu Hipparcos); HR 6556 (Bright Star Catalogue); IRAS 17326+1235 (IRAS (es) ); SAO 102932 (Catálogu SAO); GJ 681 (Catálogu Gliese); α Oph (Denominación de Bayer); 1RXS J173456.3+123344 (1RXS (en) ); ASCC 965558 (All-sky Compiled Catalogue (en) ); BD+12 3252 (Bonner Durchmusterung); CCDM J17349+1234A (Catalog of Components of Double and Multiple Stars (en) ); CSV 101662 (Catalogue of suspected variable stars (en) ); CSV 101982 (Catalogue of suspected variable stars (en) ); FK5 656 (FK5 (en) ); GC 23837 (Boss General Catalogue (es) ); GCRV 10159 (General Catalogue of Stellar Radial Velocities (es) ); HIC 86032 (Hipparcos Input Catalogue (en) ); IRC +10331 (Two-Micron Sky Survey (en) ); JP11 2871 (JP11 (en) ); LSPM J1734+1233 (LSPM-NORTH catalog (en) ); LTT 15218 (Luyten Two-Tenths catalogue (en) ); N30 3915 (Catalog of 5,268 Standard Stars Based on the Normal System N30 (en) ); NLTT 45084 (New Luyten Two-Tenths catalogue (en) ); NSV 9189 (New Catalogue of Suspected Variable Stars (es) ); PLX 4000 (General Catalogue of Trigonometric Stellar Parallaxes (es) ); PLX 4000.00 (General Catalogue of Trigonometric Stellar Parallaxes (es) ); PMC 90-93 465 (Tokyo Photoelectric Meridian Circle Catalog (en) ); PPM 133563 (Catálogo de estrellas PPM (es) ); ROT 2468 (Catalogue of rotational velocities of the stars (en) ); SRS 30656 (Southern Reference Star Catalog (en) ); TD1 20664 (TD1 Catalog of Stellar Ultraviolet Fluxes (en) ); TYC 1000-2508-1 (Tycho Catalogue (en) ); UBV 14978 (UBV Photoelectric Photometry Catalogue (en) ); uvby98 100159561 (uvbyβ Photoelectric Photometric Catalogue (en) ); WDS J17349+1234AB (Catálogo de Estrellas Dobles Washington (es) ); WEB 14516 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue (en) ); 55 Oph (Denominación de Flamsteed (es) ); Gaia DR3 4493746564376875520 (Gaia DR3 (es) ); TIC 289643770 (TESS Input Catalog (en) ); AG+12 1827 (AGK3U (en) ); UBV M 22280 (UBV Photoelectric Photometry Catalogue (en) );

Coordenaes: 17^h 34^m 56.069^s, 12^° 33^′ 36.135^″

Ras Alhague o Rasalhague ye'l nome de la estrella α Ophiuchi (α Oph / 55 Ophiuchi),^[9] de magnitú aparente +2,08, y la más brillosa de la constelación d'Ophiuchus, el portador de la culiebra.

↑ ^1,0 ^1,1 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.
↑ Afirmao en: Catalogue of Stellar Photometry in Johnson's 11-color system. Stated in source according to: SIMBAD. Llingua de la obra o nome: inglés. Data d'espublización: 2002.
↑ «Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i» (n'inglés). Astronomy and Astrophysics (3): páxs. 897-911. ochobre 2002. doi:10.1051/0004-6361:20020943.
↑ «Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system» (n'inglés). Astronomy Letters (11): páxs. 759–771. payares 2006. doi:10.1134/S1063773706110065.
↑ Gerard T. van Belle (20 avientu 2017). «Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer» (n'inglés). The Astronomical Journal (1). doi:10.3847/1538-3881/AA9D8B.
↑ «Automated spectroscopic abundances of A and F-type stars using echelle spectrographs II. Abundances of 140 A-F stars from ELODIE and CORALIE» (n'inglés). Astronomy and Astrophysics: páxs. 1121–1135. 2003. doi:10.1051/0004-6361:20021711.
↑ «The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. I. Precise Spectral Types for 372 Stars» (n'inglés). The Astronomical Journal (4): páxs. 2148–2158. abril 2001. doi:10.1086/319956.
↑ Ras Alhague (SIMBAD)

[8ba559d5760a03bedaaacc3c347bbfe4981560bf-1] 1,0 ^1,1 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.

[a1b1b6b07c06876959d87fc2f8c07203d5b512f3-3] Afirmao en: Catalogue of Stellar Photometry in Johnson's 11-color system. Stated in source according to: SIMBAD. Llingua de la obra o nome: inglés. Data d'espublización: 2002.

[24d2d3c5315277a9fe0b092b8e29d18af3714526-4] «Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i» (n'inglés). Astronomy and Astrophysics (3): páxs. 897-911. ochobre 2002. doi:10.1051/0004-6361:20020943.

[e4ae596e5e49019b6148474aa8b1d0498039646f-5] «Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system» (n'inglés). Astronomy Letters (11): páxs. 759–771. payares 2006. doi:10.1134/S1063773706110065.

[7239f0761649ada51aa4bb9951c94ed01e30e0d4-6] Gerard T. van Belle (20 avientu 2017). «Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer» (n'inglés). The Astronomical Journal (1). doi:10.3847/1538-3881/AA9D8B.

[2dfb559b783126c914d1e17bf182412aa8f9d613-7] «Automated spectroscopic abundances of A and F-type stars using echelle spectrographs II. Abundances of 140 A-F stars from ELODIE and CORALIE» (n'inglés). Astronomy and Astrophysics: páxs. 1121–1135. 2003. doi:10.1051/0004-6361:20021711.

[6c3ffe6127a33381fd4ff3b2c5aa087ef29316c2-8] «The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. I. Precise Spectral Types for 372 Stars» (n'inglés). The Astronomical Journal (4): páxs. 2148–2158. abril 2001. doi:10.1086/319956.

[SIMBAD-9] Ras Alhague (SIMBAD)

[1]

[2]

[4]

[5]

[6]

[7]

[8]

[9]

Ras Alhague
estrella de navegación, near-IR source ^(en) ^[1] y UV-emission source ^(en) ^[1]

Datos d'observación
Ascensión reuta (α)	263,73362272 °^[2]
Declinación (δ)	12,560037392 °^[2]
Magnitú aparente (V)	2,07 (banda V)
Magnitú absoluta	1,248
Constelación	Ofiucu
Velocidá de rotación	228 km/s^[4]
Velocidá radial	11,7 km/s^[5]
Parallax	67,13 mas^[2]
Radiu	2,6 Radius solars
Diámetru	4 130 000 km ^[6]
Gravedá superficial	7800 cm/s²^[7]
Tipu espectral	A5IVnn^[8]
Otros nomes
Ver llista 2MASS J17345606+1233361 (2MASS ^(es) ) HD 159561 (Catálogu Henry Draper) HIP 86032 (Catálogu Hipparcos) HR 6556 (Bright Star Catalogue) IRAS 17326+1235 (IRAS ^(es) ) SAO 102932 (Catálogu SAO) GJ 681 (Catálogu Gliese) α Oph (Denominación de Bayer) 1RXS J173456.3+123344 (1RXS ^(en) ) ASCC 965558 (All-sky Compiled Catalogue ^(en) ) BD+12 3252 (Bonner Durchmusterung) CCDM J17349+1234A (Catalog of Components of Double and Multiple Stars ^(en) ) CSV 101662 (Catalogue of suspected variable stars ^(en) ) CSV 101982 (Catalogue of suspected variable stars ^(en) ) FK5 656 (FK5 ^(en) ) GC 23837 (Boss General Catalogue ^(es) ) GCRV 10159 (General Catalogue of Stellar Radial Velocities ^(es) ) HIC 86032 (Hipparcos Input Catalogue ^(en) ) IRC +10331 (Two-Micron Sky Survey ^(en) ) JP11 2871 (JP11 ^(en) ) LSPM J1734+1233 (LSPM-NORTH catalog ^(en) ) LTT 15218 (Luyten Two-Tenths catalogue ^(en) ) N30 3915 (Catalog of 5,268 Standard Stars Based on the Normal System N30 ^(en) ) NLTT 45084 (New Luyten Two-Tenths catalogue ^(en) ) NSV 9189 (New Catalogue of Suspected Variable Stars ^(es) ) PLX 4000 (General Catalogue of Trigonometric Stellar Parallaxes ^(es) ) PLX 4000.00 (General Catalogue of Trigonometric Stellar Parallaxes ^(es) ) PMC 90-93 465 (Tokyo Photoelectric Meridian Circle Catalog ^(en) ) PPM 133563 (Catálogo de estrellas PPM ^(es) ) ROT 2468 (Catalogue of rotational velocities of the stars ^(en) ) SRS 30656 (Southern Reference Star Catalog ^(en) ) TD1 20664 (TD1 Catalog of Stellar Ultraviolet Fluxes ^(en) ) TYC 1000-2508-1 (Tycho Catalogue ^(en) ) UBV 14978 (UBV Photoelectric Photometry Catalogue ^(en) ) uvby98 100159561 (uvbyβ Photoelectric Photometric Catalogue ^(en) ) WDS J17349+1234AB (Catálogo de Estrellas Dobles Washington ^(es) ) WEB 14516 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue ^(en) ) 55 Oph (Denominación de Flamsteed ^(es) ) Gaia DR3 4493746564376875520 (Gaia DR3 ^(es) ) TIC 289643770 (TESS Input Catalog ^(en) ) AG+12 1827 (AGK3U ^(en) ) UBV M 22280 (UBV Photoelectric Photometry Catalogue ^(en) )