31 Comae Berenices

31 Comae Berenices
	rotating variable star (en) , near-IR source (en) y UV-emission source (en)
Parte de	Melotte 111
Datos d'observación
Ascensión reuta (α)	192,9246673736 °
Declinación (δ)	27,54071250467 °
Distancia a la Tierra	84,4117 pc
Magnitú aparente (V)	4,94 (banda V)
Magnitú absoluta	0,18
Constelación	Coma Berenices
Velocidá de rotación	63,2 km/s
Velocidá radial	0,94 km/s
Parallax	11,8467 mas
Radiu	8,9 Radius solars
Gravedá superficial	2630 cm/s²
Tipu espectral	G0III
Otros nomes
	Ver llista HD 111812 (Catálogu Henry Draper); HIP 62763 (Catálogu Hipparcos); HR 4883 (Bright Star Catalogue); IRAS 12492+2748 (IRAS (es) ); 2MASS J12514192+2732266 (2MASS (es) ); SAO 82537 (Catálogu SAO); GSC 01995-02586 (Guide Star Catalog (es) ); 1ES 1249+27.8 (Einstein Slew survey, Version No. 1 (en) ); 1RXS J125142.1+273222 (1RXS (en) ); 2EUVE J1251+27.5 (The second Extreme Ultraviolet Explorer source catalog (en) ); BD+28 2156 (Bonner Durchmusterung); EUVE J1251+27.5 (The first Extreme Ultraviolet Explorer source catalog (en) ); FK5 1332 (FK5 (en) ); GC 17455 (Boss General Catalogue (es) ); GCRV 7697 (General Catalogue of Stellar Radial Velocities (es) ); HIC 62763 (Hipparcos Input Catalogue (en) ); JP11 2310 (JP11 (en) ); N30 2963 (Catalog of 5,268 Standard Stars Based on the Normal System N30 (en) ); NSV 19505 (New Catalogue of Suspected Variable Stars (es) ); PLX 2955 (General Catalogue of Trigonometric Stellar Parallaxes (es) ); PLX 2955.00 (General Catalogue of Trigonometric Stellar Parallaxes (es) ); PMC 90-93 927 (Tokyo Photoelectric Meridian Circle Catalog (en) ); PPM 102212 (Catálogo de estrellas PPM (es) ); RBS 1170 (ROSAT All-Sky Survey Bright Source Catalogue (en) ); ROT 1898 (Catalogue of rotational velocities of the stars (en) ); SDSS J125141.84+273226.6 (Sloan Digital Sky Survey (es) ); SRS 31332 (Southern Reference Star Catalog (en) ); TD1 16518 (TD1 Catalog of Stellar Ultraviolet Fluxes (en) ); UBV 11570 (UBV Photoelectric Photometry Catalogue (en) ); uvby98 100111812 (uvbyβ Photoelectric Photometric Catalogue (en) ); LS Com (General Catalogue of Variable Stars); YZ 27 6272 (Yale Observatory Zone Catalog (en) ); 31 Com (Denominación de Flamsteed (es) ); FAUST 3528 (A catalog of far-ultraviolet point sources detected with the FAUST telescope on Atlas-1 (en) ); RX J1251.7+2732 (X-ray survey of the Large Magellanic Cloud by ROSAT (en) ); RX J1251.6+2732 (X-ray survey of the Large Magellanic Cloud by ROSAT (en) ); [ZEH2003] RX J1251.7+2732 1 (The Hamburg/RASS Catalogue of optical identifications. Northern high-galactic latitude ROSAT Bright Source Catalogue X-ray sources (en) ); 3XMM J125141.9+273226 (The XMM-Newton serendipitous survey. V. The Second XMM-Newton serendipitous source catalogue (en) ); WEB 11128 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue (en) ); Gaia DR2 3961912034103154944 (Gaia DR2 (es) ); [ATZ98] D350 (Identification of a complete sample of northern ROSAT all-sky survey X-ray sources. III. The catalog (en) ); TIC 450335368 (TESS Input Catalog (en) ); Gaia DR3 3961912034103154944 (Gaia DR3 (es) ); AG+27 1261 (AGK3U (en) ); TYC 1995-2586-1 (Tycho Catalogue (en) ); UBV M 18750 (UBV Photoelectric Photometry Catalogue (en) );

31 Comae Berenices (31 Com / HD 111812 / HR 4883) ye una estrella de la constelación de Melota de Berenice que s'atopa a 307 años lluz de distancia del Sistema Solar. El so allugamientu nel cielu nocherniegu marca la posición del polu norte galácticu, onde la cantidá de polvu interestelar ye menor, lo que dexa ver una gran cantidá d'oxetos del espaciu fondu.

Coordenaes: 12^h 51^m 41.92^s, 27^° 32^′ 26.565^″

31 Comae Berenices ye una xigante mariella de tipu espectral G0IIIp. Non demasiáu lluminosa dientro de les estrelles xigantes —la so lluminosidá ye 82 vegaes superior a la del Sol—, el so radiu ye 9,7 vegaes más grande que'l radiu solar. La so masa, envalorada a partir de la teoría d'estructura y evolución estelar, ye 2,55 vegaes la masa solar. Con un nucleu inerte d'heliu, ye una estrella en rápida transición escontra la fase de xigante colorada, onde va algamar una lluminosidá cuasi 1000 vegaes superior al del Sol. Nel diagrama de Hertzsprung-Russell ta cruciando la llamada Llaguna de Hertzsprung, rexón onde malapenes s'atopen estrelles.

31 Comae Berenices ye una estrella variable que'l so rellumu varia ente magnitú +4,87 y +4,97. Clasificada como una variable FK Comae Berenices, recibe la denominación de variable LS Comae Berenices.

Referencies

↑ ^1,0 ^1,1 ^1,2 Afirmao en: SIMBAD.
↑ «XHIP: An extended hipparcos compilation» (inglés) páxs. 331-346 (mayu 2012).
↑ ^3,0 ^3,1 ^3,2 ^3,3 Afirmao en: Gaia EDR3. Stated in source according to: SIMBAD. Llingua de la obra o nome: inglés. Data d'espublización: 3 avientu 2020.
↑ 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.
↑ David Latham (7 avientu 2007). «Rotational and radial velocities for a sample of 761 Hipparcos giants and the role of binarity» (n'inglés). The Astronomical Journal (1): páxs. 209–231. doi:10.1088/0004-6256/135/1/209.
↑ Afirmao en: Gaia DR3. Stated in source according to: SIMBAD. Llingua de la obra o nome: inglés. Data d'espublización: 13 xunu 2022.
↑ Eva Grebel (11 febreru 2016). «SP_Ace: a new code to derive stellar parameters and elemental abundances» (n'inglés). Astronomy and Astrophysics: páxs. 2–2. doi:10.1051/0004-6361/201526758.
↑ «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.

Coordenaes: 12^h 51^m 41.92^s, 27^° 32^′ 26.565^″

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

[27f636af16245dccc2af01fc42a741889cdf015f-2] «XHIP: An extended hipparcos compilation» (inglés) páxs. 331-346 (mayu 2012).

[88f46fab9cce60c7e274ff942763157775017282-3] 3,0 ^3,1 ^3,2 ^3,3 Afirmao en: Gaia EDR3. Stated in source according to: SIMBAD. Llingua de la obra o nome: inglés. Data d'espublización: 3 avientu 2020.

[a1b1b6b07c06876959d87fc2f8c07203d5b512f3-4] 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.

[399a071fa84a6ecdc214e8c2a304f148eb25b43d-5] David Latham (7 avientu 2007). «Rotational and radial velocities for a sample of 761 Hipparcos giants and the role of binarity» (n'inglés). The Astronomical Journal (1): páxs. 209–231. doi:10.1088/0004-6256/135/1/209.

[dcc746f72e4daa17fa873d564204f6401e960865-6] Afirmao en: Gaia DR3. Stated in source according to: SIMBAD. Llingua de la obra o nome: inglés. Data d'espublización: 13 xunu 2022.

[f350fa64e27781821e7ee675bea312a302060c6b-7] Eva Grebel (11 febreru 2016). «SP_Ace: a new code to derive stellar parameters and elemental abundances» (n'inglés). Astronomy and Astrophysics: páxs. 2–2. doi:10.1051/0004-6361/201526758.

[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.

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31 Comae Berenices
rotating variable star ^(en) ^[1], near-IR source ^(en) ^[1] y UV-emission source ^(en) ^[1]
Parte de	Melotte 111^[2]
Datos d'observación
Ascensión reuta (α)	192,9246673736 °^[3]
Declinación (δ)	27,54071250467 °^[3]
Distancia a la Tierra	84,4117 pc
Magnitú aparente (V)	4,94 (banda V)
Magnitú absoluta	0,18
Constelación	Coma Berenices
Velocidá de rotación	63,2 km/s^[5]
Velocidá radial	0,94 km/s^[6]
Parallax	11,8467 mas^[3]
Radiu	8,9 Radius solars
Gravedá superficial	2630 cm/s²^[7]
Tipu espectral	G0III^[8]
Otros nomes
Ver llista HD 111812 (Catálogu Henry Draper) HIP 62763 (Catálogu Hipparcos) HR 4883 (Bright Star Catalogue) IRAS 12492+2748 (IRAS ^(es) ) 2MASS J12514192+2732266 (2MASS ^(es) ) SAO 82537 (Catálogu SAO) GSC 01995-02586 (Guide Star Catalog ^(es) ) 1ES 1249+27.8 (Einstein Slew survey, Version No. 1 ^(en) ) 1RXS J125142.1+273222 (1RXS ^(en) ) 2EUVE J1251+27.5 (The second Extreme Ultraviolet Explorer source catalog ^(en) ) BD+28 2156 (Bonner Durchmusterung) EUVE J1251+27.5 (The first Extreme Ultraviolet Explorer source catalog ^(en) ) FK5 1332 (FK5 ^(en) ) GC 17455 (Boss General Catalogue ^(es) ) GCRV 7697 (General Catalogue of Stellar Radial Velocities ^(es) ) HIC 62763 (Hipparcos Input Catalogue ^(en) ) JP11 2310 (JP11 ^(en) ) N30 2963 (Catalog of 5,268 Standard Stars Based on the Normal System N30 ^(en) ) NSV 19505 (New Catalogue of Suspected Variable Stars ^(es) ) PLX 2955 (General Catalogue of Trigonometric Stellar Parallaxes ^(es) ) PLX 2955.00 (General Catalogue of Trigonometric Stellar Parallaxes ^(es) ) PMC 90-93 927 (Tokyo Photoelectric Meridian Circle Catalog ^(en) ) PPM 102212 (Catálogo de estrellas PPM ^(es) ) RBS 1170 (ROSAT All-Sky Survey Bright Source Catalogue ^(en) ) ROT 1898 (Catalogue of rotational velocities of the stars ^(en) ) SDSS J125141.84+273226.6 (Sloan Digital Sky Survey ^(es) ) SRS 31332 (Southern Reference Star Catalog ^(en) ) TD1 16518 (TD1 Catalog of Stellar Ultraviolet Fluxes ^(en) ) UBV 11570 (UBV Photoelectric Photometry Catalogue ^(en) ) uvby98 100111812 (uvbyβ Photoelectric Photometric Catalogue ^(en) ) LS Com (General Catalogue of Variable Stars) YZ 27 6272 (Yale Observatory Zone Catalog ^(en) ) 31 Com (Denominación de Flamsteed ^(es) ) FAUST 3528 (A catalog of far-ultraviolet point sources detected with the FAUST telescope on Atlas-1 ^(en) ) RX J1251.7+2732 (X-ray survey of the Large Magellanic Cloud by ROSAT ^(en) ) RX J1251.6+2732 (X-ray survey of the Large Magellanic Cloud by ROSAT ^(en) ) [ZEH2003] RX J1251.7+2732 1 (The Hamburg/RASS Catalogue of optical identifications. Northern high-galactic latitude ROSAT Bright Source Catalogue X-ray sources ^(en) ) 3XMM J125141.9+273226 (The XMM-Newton serendipitous survey. V. The Second XMM-Newton serendipitous source catalogue ^(en) ) WEB 11128 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue ^(en) ) Gaia DR2 3961912034103154944 (Gaia DR2 ^(es) ) [ATZ98] D350 (Identification of a complete sample of northern ROSAT all-sky survey X-ray sources. III. The catalog ^(en) ) TIC 450335368 (TESS Input Catalog ^(en) ) Gaia DR3 3961912034103154944 (Gaia DR3 ^(es) ) AG+27 1261 (AGK3U ^(en) ) TYC 1995-2586-1 (Tycho Catalogue ^(en) ) UBV M 18750 (UBV Photoelectric Photometry Catalogue ^(en) )