Gliese 450

Gliese 450
	estrella variable, fonte d'infrarroxos, fuente astrofísica de rayos X (es) y estrella de baja masa (es)
Datos d'observación
Ascensión reuta (α)	177,78056897858 °
Declinación (δ)	35,272013563936 °
Distancia a la Tierra	8,7614 pc
Magnitú aparente (V)	9,802 (banda V)
Velocidá de rotación	2,47 km/s
Velocidá radial	0,34 km/s
Parallax	114,1376 mas
Diámetru	706 000 km
Gravedá superficial	58 000 cm/s²
Tipu espectral	M1.5V
Otros nomes
	Ver llista NLTT 28756 (New Luyten Two-Tenths catalogue (en) ); ASCC 493254 (All-sky Compiled Catalogue (en) ); GCRV 62809 (General Catalogue of Stellar Radial Velocities (es) ); GJ 450 (Catálogu Gliese); HIC 57802 (Hipparcos Input Catalogue (en) ); HIP 57802 (Catálogu Hipparcos); LSPM J1151+3516 (LSPM-NORTH catalog (en) ); 2MASS J11510737+3516188 (2MASS (es) ); NSV 18958 (New Catalogue of Suspected Variable Stars (es) ); PLX 2739.02 (General Catalogue of Trigonometric Stellar Parallaxes (es) ); 1RXS J115107.6+351617 (1RXS (en) ); SDSS J115106.57+351627.2 (Sloan Digital Sky Survey (es) ); UCAC2 44138604 (Second USNO CCD Astrograph Catalog (en) ); UCAC4 627-046883 (Fourth USNO CCD Astrograph Catalog (en) ); Zkh 172 (Catálogo Zakhozhaj (es) ); Karmn J11511+352 (CARMENES input catalogue of M dwarfs. I. Low-resolution spectroscopy with CAFOS (en) ); TYC 2526-2357-1 (Catálogo Tycho-2 (es) ); BD+36 2219 (Bonner Durchmusterung); RX J1151.1+3516 (X-ray survey of the Large Magellanic Cloud by ROSAT (en) ); [TSA98] J115108.43+351632.73 (Initial results of a comprehensive ultrasoft survey of the Einstein IPC database: source list and confirmation of the selection procedure (en) ); [ZEH2003] RX J1151.1+3516 1 (The Hamburg/RASS Catalogue of optical identifications. Northern high-galactic latitude ROSAT Bright Source Catalogue X-ray sources (en) ); PM J11511+3516 (Catalogs of proper-motion stars. I. Stars brighter than visual magnitude 15 and with annual proper motion of 1" or more (en) ); Gaia DR1 4031586157514097024 (Gaia DR1 (es) ); WEB 10371 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue (en) ); Gaia DR2 4031586157514097024 (Gaia DR2 (es) );

Gliese 450 (GJ 450 / HIP 57802 / G 148-13)^[7] ye una estrella na constelación del sietestrellu asitiada a 26 minutos d'arcu de HD 102713. Tien magnitú aparente +9,72, polo que nun ye observable a simple vista. Alcuéntrase a 27,9 años lluz del Sistema Solar.

Coordenaes: 11^h 51^m 7.337^s, 35^° 16^′ 19.249^″

Carauterístiques

Gliese 450 ye una nana colorada de tipu espectral M1Ve. Diversos estudios ufierten cifres desemeyaes pa la so temperatura superficial, ente 3451 y 3748 K.^[8]^[9]^[10] Tien una lluminosidá bolométrica —en toles llonxitúes d'onda— equivalente al 3% de la que tien el Sol.^[9] Xira sobre sigo mesma con una velocidá de rotación proyeutada igual o inferior a 3,3 km/s.^[8] Amuesa un conteníu metálico inferior a la solar, pero tampoco esiste consensu en cuantes al valor exactu; ésti taría entendíu ente'l 36%^[10] y el 61% del atopáu na nuesa estrella.^[8] Tien una masa de 0,491 ± 0,004 mases solares y piénsase que ye una estrella nueva de 1000 millones d'años d'edá.^[11]

Les estrelles conocíes más cercanes a Gliese 450 son Groombridge 1830 y 61 Ursae Majoris, a 2,3 y 3,5 años lluz respeutivamente.^[12]

Referencies

↑ ^1,0 ^1,1 ^1,2 ^1,3 Afirmao en: SIMBAD.
↑ ^2,0 ^2,1 ^2,2 ^2,3 ^2,4 Afirmao en: Gaia DR2. Llingua de la obra o nome: inglés. Data d'espublización: 25 abril 2018.
↑ Afirmao en: VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012). Autor: Arne Henden. Llingua de la obra o nome: inglés. Data d'espublización: xunetu 2012.
↑ ^4,0 ^4,1 «Observation and modelling of main-sequence star chromospheres - XIV. Rotation of dM1 stars★» (n'inglés). Monthly Notices of the Royal Astronomical Society (3): páxs. 1657–1673. 25 agostu 2010. doi:10.1111/J.1365-2966.2010.16827.X.
↑ Davide Gandolfi (4 payares 2009). «REM near-IR and optical photometric monitoring of pre-main sequence stars in Orion. Rotation periods and starspot parameters» (n'inglés). Astronomy and Astrophysics (3): páxs. 1313-1330. doi:10.1051/0004-6361/200913327.
↑ A. Klutsch (mayu 2015). «CARMENES input catalogue of M dwarfs. I. Low-resolution spectroscopy with CAFOS» (n'inglés). Astronomy and Astrophysics: páxs. 128–128. doi:10.1051/0004-6361/201525803.
↑ NLTT 28756 -- Low-mass star (M<1solMass) (SIMBAD)
↑ ^8,0 ^8,1 ^8,2 Jenkins, J. S.; Ramsey, L. W.; Jones, H. R. A.; Pavlenko, Y.; Gallardo, J.; Barnes, J. R.; Pinfield, D. J. (2009). «Rotational Velocities for M Dwarfs». The Astrophysical Journal 704 (2). páxs. 975-988. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2009ApJ...704..975J&db_key=AST&nosetcookie=1.
↑ ^9,0 ^9,1 Morales, J. C.; Ribas, I.; Jordi, C. (2008). «The effect of activity on stellar temperatures and radii». Astronomy and Astrophysics 478 (2). páxs. 507-512 (Tabla consultada en CDS). http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2008A%26A...478..507M&db_key=AST&nosetcookie=1.
↑ ^10,0 ^10,1 Frasca, A.; Covino, Y.; Spezzi, L.; Alcalá, J. M.; Marilli, Y.; Fżrész, G.; Gandolfi, D. (2010). «REM near-DIR and optical photometric monitoring of pre-main sequence stars in Orion. Rotation periods and starspot parameters». Astronomy and Astrophysics 508 (3). páxs. 1313-1330. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2009A%26A...508.1313F&db_key=AST&nosetcookie=1.
↑ Heinze, A. N.; Hinz, Philip M.; Sivanandam, Suresh; Kenworthy, Matthew; Meyer, Michael; Miller, Douglas (2010). «Constraints on Long-period Planets from an L'- and M-band Survey of Nearby Sun-like Stars: Observations». The Astrophysical Journal 714 (2). páxs. 1551-1569. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2010ApJ...714.1551H&db_key=AST&nosetcookie=1.
↑ Stars within 15 light-years of Bonner Durchmusterung +36°2219 (The Internet Stellar Database)

Coordenaes: 11^h 51^m 7.337^s, 35^° 16^′ 19.249^″

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

[b64af6c056b6c5f6a7ea17156dcd718d4744bbf8-2] 2,0 ^2,1 ^2,2 ^2,3 ^2,4 Afirmao en: Gaia DR2. Llingua de la obra o nome: inglés. Data d'espublización: 25 abril 2018.

[d7f8a9e6e98354f35e8f698e38dae1f8d19bf4de-3] Afirmao en: VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012). Autor: Arne Henden. Llingua de la obra o nome: inglés. Data d'espublización: xunetu 2012.

[a496ea658ce860c5200843c54a3a7137dad5c945-4] 4,0 ^4,1 «Observation and modelling of main-sequence star chromospheres - XIV. Rotation of dM1 stars★» (n'inglés). Monthly Notices of the Royal Astronomical Society (3): páxs. 1657–1673. 25 agostu 2010. doi:10.1111/J.1365-2966.2010.16827.X.

[983b0a2844a48b683d0870784844d0e97c98167b-5] Davide Gandolfi (4 payares 2009). «REM near-IR and optical photometric monitoring of pre-main sequence stars in Orion. Rotation periods and starspot parameters» (n'inglés). Astronomy and Astrophysics (3): páxs. 1313-1330. doi:10.1051/0004-6361/200913327.

[a256b262d506f8e0b26c43c9ff08ffc24285964e-6] A. Klutsch (mayu 2015). «CARMENES input catalogue of M dwarfs. I. Low-resolution spectroscopy with CAFOS» (n'inglés). Astronomy and Astrophysics: páxs. 128–128. doi:10.1051/0004-6361/201525803.

[7] NLTT 28756 -- Low-mass star (M<1solMass) (SIMBAD)

[Jenkins-8] 8,0 ^8,1 ^8,2 Jenkins, J. S.; Ramsey, L. W.; Jones, H. R. A.; Pavlenko, Y.; Gallardo, J.; Barnes, J. R.; Pinfield, D. J. (2009). «Rotational Velocities for M Dwarfs». The Astrophysical Journal 704 (2). páxs. 975-988. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2009ApJ...704..975J&db_key=AST&nosetcookie=1.

[Morales-9] 9,0 ^9,1 Morales, J. C.; Ribas, I.; Jordi, C. (2008). «The effect of activity on stellar temperatures and radii». Astronomy and Astrophysics 478 (2). páxs. 507-512 (Tabla consultada en CDS). http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2008A%26A...478..507M&db_key=AST&nosetcookie=1.

[Frasca-10] 10,0 ^10,1 Frasca, A.; Covino, Y.; Spezzi, L.; Alcalá, J. M.; Marilli, Y.; Fżrész, G.; Gandolfi, D. (2010). «REM near-DIR and optical photometric monitoring of pre-main sequence stars in Orion. Rotation periods and starspot parameters». Astronomy and Astrophysics 508 (3). páxs. 1313-1330. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2009A%26A...508.1313F&db_key=AST&nosetcookie=1.

[Henze-11] Heinze, A. N.; Hinz, Philip M.; Sivanandam, Suresh; Kenworthy, Matthew; Meyer, Michael; Miller, Douglas (2010). «Constraints on Long-period Planets from an L'- and M-band Survey of Nearby Sun-like Stars: Observations». The Astrophysical Journal 714 (2). páxs. 1551-1569. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2010ApJ...714.1551H&db_key=AST&nosetcookie=1.

[12] Stars within 15 light-years of Bonner Durchmusterung +36°2219 (The Internet Stellar Database)

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Gliese 450
estrella variable^[1], fonte d'infrarroxos^[1], fuente astrofísica de rayos X ^(es) ^[1] y estrella de baja masa ^(es) ^[1]
Datos d'observación
Ascensión reuta (α)	177,78056897858 °^[2]
Declinación (δ)	35,272013563936 °^[2]
Distancia a la Tierra	8,7614 pc
Magnitú aparente (V)	9,802 (banda V)
Velocidá de rotación	2,47 km/s^[4]
Velocidá radial	0,34 km/s^[2]
Parallax	114,1376 mas^[2]
Diámetru	706 000 km ^[4]
Gravedá superficial	58 000 cm/s²^[5]
Tipu espectral	M1.5V^[6]
Otros nomes
Ver llista NLTT 28756 (New Luyten Two-Tenths catalogue ^(en) ) ASCC 493254 (All-sky Compiled Catalogue ^(en) ) GCRV 62809 (General Catalogue of Stellar Radial Velocities ^(es) ) GJ 450 (Catálogu Gliese) HIC 57802 (Hipparcos Input Catalogue ^(en) ) HIP 57802 (Catálogu Hipparcos) LSPM J1151+3516 (LSPM-NORTH catalog ^(en) ) 2MASS J11510737+3516188 (2MASS ^(es) ) NSV 18958 (New Catalogue of Suspected Variable Stars ^(es) ) PLX 2739.02 (General Catalogue of Trigonometric Stellar Parallaxes ^(es) ) 1RXS J115107.6+351617 (1RXS ^(en) ) SDSS J115106.57+351627.2 (Sloan Digital Sky Survey ^(es) ) UCAC2 44138604 (Second USNO CCD Astrograph Catalog ^(en) ) UCAC4 627-046883 (Fourth USNO CCD Astrograph Catalog ^(en) ) Zkh 172 (Catálogo Zakhozhaj ^(es) ) Karmn J11511+352 (CARMENES input catalogue of M dwarfs. I. Low-resolution spectroscopy with CAFOS ^(en) ) TYC 2526-2357-1 (Catálogo Tycho-2 ^(es) ) BD+36 2219 (Bonner Durchmusterung) RX J1151.1+3516 (X-ray survey of the Large Magellanic Cloud by ROSAT ^(en) ) [TSA98] J115108.43+351632.73 (Initial results of a comprehensive ultrasoft survey of the Einstein IPC database: source list and confirmation of the selection procedure ^(en) ) [ZEH2003] RX J1151.1+3516 1 (The Hamburg/RASS Catalogue of optical identifications. Northern high-galactic latitude ROSAT Bright Source Catalogue X-ray sources ^(en) ) PM J11511+3516 (Catalogs of proper-motion stars. I. Stars brighter than visual magnitude 15 and with annual proper motion of 1" or more ^(en) ) Gaia DR1 4031586157514097024 (Gaia DR1 ^(es) ) WEB 10371 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue ^(en) ) Gaia DR2 4031586157514097024 (Gaia DR2 ^(es) )