Sigma Sculptoris

Sigma Sculptoris
	estrella, Estrella variable, Estrella variable Alfa2 Canum Venaticorum (es) , near-IR source (en) y UV-emission source (en)
Datos d'observación
Ascensión reuta (α)	15,61012941127 °
Declinación (δ)	−31,5520138252 °
Distancia a la Tierra	61,781 pc
Magnitú aparente (V)	5,501 (banda V)
Magnitú absoluta	1,24
Constelación	Sculptor
Velocidá de rotación	82,1 km/s
Velocidá radial	−15,4 km/s
Parallax	16,1863 mas
Carauterístiques físiques
Radiu	2,2 Radius solars
Masa	2,07 M☉
Tipu espectral	A1/2IV
Otros nomes
	Ver llista GSC 06999-02321 (Guide Star Catalog (es) ); HD 6178 (Catálogu Henry Draper); HIP 4852 (Catálogu Hipparcos); HR 293 (Bright Star Catalogue); SAO 192884 (Catálogu SAO); IRAS 00599-3149 (IRAS (es) ); 2MASS J01022643-3133070 (2MASS (es) ); σ Scl (Denominación de Bayer); CPC 17 370 (Cape Photographic Catalogue (en) ); FK5 1026 (FK5 (en) ); GC 1252 (Boss General Catalogue (es) ); GCRV 592 (General Catalogue of Stellar Radial Velocities (es) ); HIC 4852 (Hipparcos Input Catalogue (en) ); N30 205 (Catalog of 5,268 Standard Stars Based on the Normal System N30 (en) ); PMC 90-93 670 (Tokyo Photoelectric Meridian Circle Catalog (en) ); PPM 276619 (Catálogo de estrellas PPM (es) ); SRS 31026 (Southern Reference Star Catalog (en) ); TD1 588 (TD1 Catalog of Stellar Ultraviolet Fluxes (en) ); TYC 6999-2321-1 (Tycho Catalogue (en) ); UBV 1004 (UBV Photoelectric Photometry Catalogue (en) ); sig Scl (General Catalogue of Variable Stars); uvby98 100006178 (uvbyβ Photoelectric Photometric Catalogue (en) ); SGPA 193 (Young, high-velocity A stars. I. Rotational velocities and a catalog of early-type stars at the South Galactic Pole (en) ); WEB 938 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue (en) ); Gaia DR2 5027700403305690752 (Gaia DR2 (es) ); Gaia DR3 5027700403305690752 (Gaia DR3 (es) ); TIC 67545826 (TESS Input Catalog (en) ); UBV M 7870 (UBV Photoelectric Photometry Catalogue (en) ); Renson 1584 (General catalogue of AP and AM stars (en) );

Sigma Sculptoris (σ Scl / σ Sculptoris / HD 6178 / HR 293)^[8]^[9] ye una estrella asitiada na constelación de Sculptor de magnitú aparente +5,51. Alcuéntrase a 227 años lluz del Sol.

Coordenaes: 1^h 2^m 26.431^s, -31^° 33^′ 7.25^″

Sigma Sculptoris ye una estrella blanca de la secuencia principal que, al igual que'l nuesu Sol, llogra la so enerxía de la fusión del hidróxenu. De tipu espectral A2V, tien una temperatura efectivo de 8591 K,^[10] siendo les sos carauterístiques físiques similares a les d'estrelles más conocíes como Siriu (α Canis Majoris) o Alfecca Meridiana (α Coronae Australis). Tien una lluminosidá 29 vegaes mayor que la del Sol y el so radiu ye 2,2 vegaes más grande que'l radiu solar.^[11] Rota a una velocidá de 79 km/s —anque esti valor ye namái una llende inferior—, casi 40 vegaes más apriesa que'l Sol.^[12] Con una masa de 2,16 mases solares, percorrió 2/3 partes del so trayeutu dientro de la secuencia principal.^[13]

Sigma Sculptoris ta catalogada como estrella variable del tipo Alfa2 Canum Venaticorum. Les estrelles d'esta clase, representaes por Cor Caroli (α CVn), carauterizar por tener campos magnéticos intensos y presentar llinies espectrales especialmente fuertes de determinaos elementos químicos. El rellumu de Sigma Sculptoris varia 0,03 magnitúes, nun esistiendo rexistru de nengún periodu.^[14]

Referencies editar

↑ ^1,0 ^1,1 ^1,2 Afirmao en: SIMBAD.
↑ ^2,0 ^2,1 Afirmao en: General Catalogue of Variable Stars.
↑ ^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.
↑ Ulrich Bastian (2000). «Catálogo Tycho-2». Astronomy and Astrophysics: páxs. 27–30.
↑ «Accurate stellar rotational velocities using the Fourier transform of the cross correlation maximum» (n'inglés). Astronomy and Astrophysics. xunetu 2011. doi:10.1051/0004-6361/201016386.
↑ «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.
↑ Afirmao en: Catalogue of two-dimensional spectral types for the HD stars, Vol. 3. Stated in source according to: SIMBAD. Páxina: 0. Data d'espublización: 1982.
↑ Sigma Sculptoris (SIMBAD)
↑ Sigma Sculptoris (The Bright Star Catalogue)
↑ Paunzen, Y.; Schnell, A.; Maitzen, H. M. (2007). «An empirical temperature calibration for the Δ a photometric system. II. The A-type and mid F-type stars». Astronomy and Astrophysics 458 (1). páxs. 293-296. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2006A%26A...458..293P&db_key=AST&nosetcookie=1.
↑ Sigma Sculptoris. Catalogue of Stellar Diameters (CADARS) (Pasinetti-Fracassini+ 2001)
↑ Royer, F.; Zorec, J.; Gómez, A. E. (2007). «Rotational velocities of A-type stars. III. Velocity distributions». Astronomy and Astrophysics 463 (2). páxs. 671-682. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2007A%26A...463..671R&db_key=AST&nosetcookie=1.
↑ Zorec, J.; Royer, F. (2012). «Rotational velocities of A-type stars. IV. Evolution of rotational velocities». Astronomy and Astrophysics 537. A120. http://adsabs.harvard.edu/cgi-bin/nph-bib_query?2012A%26A...537A.120Z&db_key=AST.
↑ Sigma Sculptoris (General Catalogue of Variable Stars)

Coordenaes: 1^h 2^m 26.431^s, -31^° 33^′ 7.25^″

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

[b2ad9017671982757d0f49921afa6c148c9cb871-2] 2,0 ^2,1 Afirmao en: General Catalogue of Variable Stars.

[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.

[1cc6520fc51b10b72364c09aaaf51e0e9a8ee26b-4] Ulrich Bastian (2000). «Catálogo Tycho-2». Astronomy and Astrophysics: páxs. 27–30.

[d2d751bd11760d1d47dc531ef822add998cb3611-5] «Accurate stellar rotational velocities using the Fourier transform of the cross correlation maximum» (n'inglés). Astronomy and Astrophysics. xunetu 2011. doi:10.1051/0004-6361/201016386.

[e4ae596e5e49019b6148474aa8b1d0498039646f-6] «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.

[0144bf18b400c5c0ae3e5c0f0937fc379c74089f-7] Afirmao en: Catalogue of two-dimensional spectral types for the HD stars, Vol. 3. Stated in source according to: SIMBAD. Páxina: 0. Data d'espublización: 1982.

[8] Sigma Sculptoris (SIMBAD)

[9] Sigma Sculptoris (The Bright Star Catalogue)

[10] Paunzen, Y.; Schnell, A.; Maitzen, H. M. (2007). «An empirical temperature calibration for the Δ a photometric system. II. The A-type and mid F-type stars». Astronomy and Astrophysics 458 (1). páxs. 293-296. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2006A%26A...458..293P&db_key=AST&nosetcookie=1.

[11] Sigma Sculptoris. Catalogue of Stellar Diameters (CADARS) (Pasinetti-Fracassini+ 2001)

[Royer-12] Royer, F.; Zorec, J.; Gómez, A. E. (2007). «Rotational velocities of A-type stars. III. Velocity distributions». Astronomy and Astrophysics 463 (2). páxs. 671-682. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2007A%26A...463..671R&db_key=AST&nosetcookie=1.

[Zorec2012-13] Zorec, J.; Royer, F. (2012). «Rotational velocities of A-type stars. IV. Evolution of rotational velocities». Astronomy and Astrophysics 537. A120. http://adsabs.harvard.edu/cgi-bin/nph-bib_query?2012A%26A...537A.120Z&db_key=AST.

[14] Sigma Sculptoris (General Catalogue of Variable Stars)

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Sigma Sculptoris
estrella^[1], Estrella variable^[2], Estrella variable Alfa2 Canum Venaticorum ^(es) ^[2], near-IR source ^(en) ^[1] y UV-emission source ^(en) ^[1]
Datos d'observación
Ascensión reuta (α)	15,61012941127 °^[3]
Declinación (δ)	−31,5520138252 °^[3]
Distancia a la Tierra	61,781 pc
Magnitú aparente (V)	5,501 (banda V)
Magnitú absoluta	1,24
Constelación	Sculptor
Velocidá de rotación	82,1 km/s^[5]
Velocidá radial	−15,4 km/s^[6]
Parallax	16,1863 mas^[3]
Carauterístiques físiques
Radiu	2,2 Radius solars
Masa	2,07 M☉
Tipu espectral	A1/2IV^[7]
Otros nomes
Ver llista GSC 06999-02321 (Guide Star Catalog ^(es) ) HD 6178 (Catálogu Henry Draper) HIP 4852 (Catálogu Hipparcos) HR 293 (Bright Star Catalogue) SAO 192884 (Catálogu SAO) IRAS 00599-3149 (IRAS ^(es) ) 2MASS J01022643-3133070 (2MASS ^(es) ) σ Scl (Denominación de Bayer) CPC 17 370 (Cape Photographic Catalogue ^(en) ) FK5 1026 (FK5 ^(en) ) GC 1252 (Boss General Catalogue ^(es) ) GCRV 592 (General Catalogue of Stellar Radial Velocities ^(es) ) HIC 4852 (Hipparcos Input Catalogue ^(en) ) N30 205 (Catalog of 5,268 Standard Stars Based on the Normal System N30 ^(en) ) PMC 90-93 670 (Tokyo Photoelectric Meridian Circle Catalog ^(en) ) PPM 276619 (Catálogo de estrellas PPM ^(es) ) SRS 31026 (Southern Reference Star Catalog ^(en) ) TD1 588 (TD1 Catalog of Stellar Ultraviolet Fluxes ^(en) ) TYC 6999-2321-1 (Tycho Catalogue ^(en) ) UBV 1004 (UBV Photoelectric Photometry Catalogue ^(en) ) sig Scl (General Catalogue of Variable Stars) uvby98 100006178 (uvbyβ Photoelectric Photometric Catalogue ^(en) ) SGPA 193 (Young, high-velocity A stars. I. Rotational velocities and a catalog of early-type stars at the South Galactic Pole ^(en) ) WEB 938 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue ^(en) ) Gaia DR2 5027700403305690752 (Gaia DR2 ^(es) ) Gaia DR3 5027700403305690752 (Gaia DR3 ^(es) ) TIC 67545826 (TESS Input Catalog ^(en) ) UBV M 7870 (UBV Photoelectric Photometry Catalogue ^(en) ) Renson 1584 (General catalogue of AP and AM stars ^(en) )