GO Andromedae

GO Andromedae
	estrella variable, Estrella variable Alfa2 Canum Venaticorum (es) , UV-emission source (en) y near-IR source (en)
Datos d'observación
Ascensión reuta (α)	12,57610548047 °
Declinación (δ)	45,00225987141 °
Distancia a la Tierra	103,967 pc
Magnitú aparente (V)	6,15 (banda V)
Magnitú absoluta	1,18
Constelación	Andrómeda (es)
Velocidá de rotación	42 km/s
Velocidá radial	1,6 km/s
Parallax	9,6184 mas
Diámetru	2 660 000 km
Tipu espectral	A3VpSiSrCrEuKsn
Otros nomes
	Ver llista 2MASS J00501826+4500082 (2MASS (es) ); HD 4778 (Catálogu Henry Draper); HIP 3919 (Catálogu Hipparcos); SAO 36702 (Catálogu SAO); HR 234 (Bright Star Catalogue); GSC 03262-00353 (Guide Star Catalog (es) ); BD+44 176 (Bonner Durchmusterung); CEL 93 (Celescope Catalogue of Ultraviolet Magnitudes (en) ); CSV 5873 (Catalogue of suspected variable stars (en) ); FK5 2055 (FK5 (en) ); GC 999 (Boss General Catalogue (es) ); GCRV 468 (General Catalogue of Stellar Radial Velocities (es) ); HIC 3919 (Hipparcos Input Catalogue (en) ); N30 172 (Catalog of 5,268 Standard Stars Based on the Normal System N30 (en) ); PMC 90-93 1191 (Tokyo Photoelectric Meridian Circle Catalog (en) ); PPM 43369 (Catálogo de estrellas PPM (es) ); TD1 462 (TD1 Catalog of Stellar Ultraviolet Fluxes (en) ); TYC 3262-353-1 (Tycho Catalogue (en) ); UBV 682 (UBV Photoelectric Photometry Catalogue (en) ); uvby98 100004778 (uvbyβ Photoelectric Photometric Catalogue (en) ); Gaia DR1 377540785098689024 (Gaia DR1 (es) ); WEB 700 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue (en) ); Gaia DR2 377540789395063552 (Gaia DR2 (es) ); TIC 191662881 (TESS Input Catalog (en) ); Gaia DR3 377540789395063552 (Gaia DR3 (es) ); AG+44 98 (AGK3U (en) ); Renson 1250 (General catalogue of AP and AM stars (en) ); GO And (General Catalogue of Variable Stars); UBV M 7689 (UBV Photoelectric Photometry Catalogue (en) );

Coordenaes: 0^h 50^m 18.265^s, 45^° 0^′ 8.136^″

GO Andromedae (GO And / HD 4778 / HR 234)^[10] ye una estrella variable na constelación d'Andrómeda. De magnitú aparente media +6,13, alcuéntrase a 296 años lluz de distancia del Sistema Solar.

GO Andromedae ye una estrella blanca de la secuencia principal de tipu espectral A0p,^[10] onde la «p» indica que ye una estrella peculiar, nel sentíu de que'l so conteníu superficial en metales ye anómala. Ye una estrella con llinies débiles d'heliu y con llinies fuertes de cromu, estronciu y europiu.^[11] Tien una temperatura efectivo de 9977 K y una lluminosidá 32 vegaes mayor que la lluminosidá solar. Con una masa de 2,29 mases solares, la so edá envalórase en namái 182 millones d'años.^[12] El so radiu ye 2,6 vegaes más grande que'l del Sol^[13] y xira sobre sigo mesma con una velocidá de rotación proyeutada de 42 km/s.^[14]

GO Andromedae ta catalogada como una variable Alfa2 Canum Venaticorum que'l so rellumu bazcuya 0,03 magnitúes a lo llargo d'un periodu de 2,156 díes.^[15] Alioth (ε Ursae Majoris) ye la más brillosa d'esta clase de variables.

Referencies

↑ ^1,0 ^1,1 ^1,2 Afirmao en: SIMBAD.
↑ 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.
↑ 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.
↑ Afirmao en: VizieR. Llingua de la obra o nome: inglés.
↑ «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.
↑ Ralf-Dieter Scholz (payares 2007). «Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations». Astronomische Nachrichten (9): páxs. 889-896. doi:10.1002/ASNA.200710776.
↑ Oleg Kochukhov (23 xunetu 2014). «Interferometry of chemically peculiar stars: theoretical predictions versus modern observing facilities» (n'inglés). Monthly Notices of the Royal Astronomical Society (2): páxs. 1629–1642. doi:10.1093/MNRAS/STU1259.
↑ «The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars». The Astrophysical Journal Supplement Series: páxs. 135–172. xunetu 1995. doi:10.1086/192182.
↑ ^10,0 ^10,1 GO Andromedae (SIMBAD)
↑ Bychkov, V. D.; Bychkova, L. V.; Madej, J. (2003). «Catalogue of averaged stellar effective magnetic fields. I. Chemically peculiar A and B type stars». Astronomy and Astrophysics 407. pp. 631-642. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2003A%26A...407..631B&db_key=AST&nosetcookie=1.
↑ Kochukhov, O.; Bagnulo, S. (2006). «Evolutionary state of magnetic chemically peculiar stars». Astronomy and Astrophysics 450 (2). pp. 763-775. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2006A%26A...450..763K&db_key=AST&nosetcookie=1.
↑ GO Andromedae (CADARS)
↑ Royer, F.; Grenier, S.; Baylac, M.-O.; Gómez, A. E.; Zorec, J. (2002). «[http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2002A%26A...393..897R&db_key=AST&nosetcookie=1 Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v ensin i]». Astronomy and Astrophysics 393. pp. 897-911. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2002A%26A...393..897R&db_key=AST&nosetcookie=1.
↑ GO Andromedae (General Catalogue of Variable Stars)

Coordenaes: 0^h 50^m 18.265^s, 45^° 0^′ 8.136^″

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

[b2ad9017671982757d0f49921afa6c148c9cb871-2] 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.

[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.

[eedd662cbc889e46d17821464d4af8748a120b6c-5] Afirmao en: VizieR. Llingua de la obra o nome: inglés.

[24d2d3c5315277a9fe0b092b8e29d18af3714526-6] «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.

[7d6d9fd91b53488ef18a42e8a01178769fa48681-7] Ralf-Dieter Scholz (payares 2007). «Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations». Astronomische Nachrichten (9): páxs. 889-896. doi:10.1002/ASNA.200710776.

[5c901d4b5bb8701c919ac6d9bd6f9d4b23d9cfaf-8] Oleg Kochukhov (23 xunetu 2014). «Interferometry of chemically peculiar stars: theoretical predictions versus modern observing facilities» (n'inglés). Monthly Notices of the Royal Astronomical Society (2): páxs. 1629–1642. doi:10.1093/MNRAS/STU1259.

[5fb1cd0c11fbe4343a782c8f8a5fc01d9c1bb495-9] «The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars». The Astrophysical Journal Supplement Series: páxs. 135–172. xunetu 1995. doi:10.1086/192182.

[SIMBAD-10] 10,0 ^10,1 GO Andromedae (SIMBAD)

[11] Bychkov, V. D.; Bychkova, L. V.; Madej, J. (2003). «Catalogue of averaged stellar effective magnetic fields. I. Chemically peculiar A and B type stars». Astronomy and Astrophysics 407. pp. 631-642. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2003A%26A...407..631B&db_key=AST&nosetcookie=1.

[12] Kochukhov, O.; Bagnulo, S. (2006). «Evolutionary state of magnetic chemically peculiar stars». Astronomy and Astrophysics 450 (2). pp. 763-775. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2006A%26A...450..763K&db_key=AST&nosetcookie=1.

[13] GO Andromedae (CADARS)

[Royer2002-14] Royer, F.; Grenier, S.; Baylac, M.-O.; Gómez, A. E.; Zorec, J. (2002). «[http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2002A%26A...393..897R&db_key=AST&nosetcookie=1 Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v ensin i]». Astronomy and Astrophysics 393. pp. 897-911. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2002A%26A...393..897R&db_key=AST&nosetcookie=1.

[15] GO Andromedae (General Catalogue of Variable Stars)

[1]

[2]

[3]

[5]

[6]

[7]

[8]

[9]

[10]

[11]

[12]

[13]

[14]

[15]