Estrella de Luyten

Estrella de Luyten
	estrella, estrella doble (es) y near-IR source (en)
Parte de	Burbuja Local (es)
Epónimu	Willem Jacob Luyten
Datos d'observación
Ascensión reuta (α)	111,85207903567 °
Declinación (δ)	5,2257893030714 °
Distancia a la Tierra	3,786 pc
Magnitú aparente (V)	9,872 (banda V)
Magnitú absoluta	11,42
Constelación	Canis Minor
Velocidá de rotación	4,506 km/s
Velocidá radial	18,096 km/s
Parallax	264,1269 mas
Carauterístiques físiques
Radiu	0,293 Radius solars
Masa	0,29 M☉
Gravedá superficial	88 300 cm/s²
Tipu espectral	M3.5V
Otros nomes
	Ver llista GSC 00173-01124 (Guide Star Catalog (es) ); HIP 36208 (Catálogu Hipparcos); IRAS 07247+0520 (IRAS (es) ); 2MASS J07272450+0513329 (2MASS (es) ); GJ 273 (Catálogu Gliese); ASCC 1029189 (All-sky Compiled Catalogue (en) ); BD+05 1668 (Bonner Durchmusterung); GCRV 4954 (General Catalogue of Stellar Radial Velocities (es) ); HIC 36208 (Hipparcos Input Catalogue (en) ); JP11 25 (JP11 (en) ); LFT 527 (Luyten Five-Tenths catalogue (en) ); LHS 33 (Luyten Half-Second catalogue (en) ); LSPM J0727+0513 (LSPM-NORTH catalog (en) ); LTT 12021 (Luyten Two-Tenths catalogue (en) ); NLTT 17881 (New Luyten Two-Tenths catalogue (en) ); PLX 1755 (General Catalogue of Trigonometric Stellar Parallaxes (es) ); PLX 1755.00 (General Catalogue of Trigonometric Stellar Parallaxes (es) ); RAFGL 273 (The Revised AFGL (RAFGL) catalogue (en) ); TYC 173-3208-1 (Tycho Catalogue (en) ); UBV 7206 (UBV Photoelectric Photometry Catalogue (en) ); Zkh 102 (Catálogo Zakhozhaj (es) ); UCAC2 33555673 (Second USNO CCD Astrograph Catalog (en) ); Karmn J07274+052 (CARMENES input catalogue of M dwarfs. I. Low-resolution spectroscopy with CAFOS (en) ); Gaia DR2 3139847906304421632 (Gaia DR2 (es) ); AC2000 282902 (The AC 2000: the astrographic catalogue on the system defined by the Hipparcos catalogue (en) ); PM 07247+0522 (Catalogs of proper-motion stars. I. Stars brighter than visual magnitude 15 and with annual proper motion of 1" or more (en) ); PM J07274+0513 (Catalogs of proper-motion stars. I. Stars brighter than visual magnitude 15 and with annual proper motion of 1" or more (en) ); WEB 7213 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue (en) ); Gaia DR3 3139847906307949696 (Gaia DR3 (es) ); UBV M 272 (UBV Photoelectric Photometry Catalogue (en) ); WDS J07274+0514A (Catálogo de Estrellas Dobles Washington (es) ); TIC 318686860 (TESS Input Catalog (en) );

Coordenaes: 7^h 27^m 24.499^s, 5^° 13^′ 32.841^″

La Estrella de Luyten (GJ 273 / LHS 33 / HIP 36208)^[7] ye una estrella de magnitú aparente +9,85, que'l so gran movimientu propiu foi probablemente afayáu pol astrónomu Willem Jacob Luyten, a quien debe'l so nome.^[8] Conocida sobremanera pola so proximidá al Sistema Solar —del que falta 12,37 años lluz—, alcontrar na constelación del Can Menor, tando asitiada al suroeste de Gomeisa (β Canis Minoris) y al oeste de Procyon (α Canis Minoris). Los sistemes estelares más cercanos a la Estrella de Luyten son la citada Procyon, asitiada a apenes 1,2 años lluz, y Ross 614, a 3,9 años lluz.^[8]

La Estrella de Luyten ye una nana colorada de tipu espectral M3.5 V^[7] con una lluminosidá equivalente al 0,145% de la lluminosidá solar.^[9] Neto a otres munches estrelles de la redolada del Sistema Solar, tales como Ross 154, Ross 128 o YZ Ceti, ye menos masiva que'l Sol, con una masa envalorada de 0,26 mases solares.^[10] Paez ser una estrella de lenta rotación —ello ye que pudiera ser que non rotara n'absolutu—; seya que non la llende cimera de la so velocidá de rotación ye de namái 1 km/s.^[11] El so conteníu de metales (metalicidá) ye claramente inferior a la solar ([Fe/H] = -0,16).^[12]

Hai cierta evidencia de que la Estrella de Luyten puede tener un compañeru subestelar con una masa entendida ente 0,4 y 1,1 vegaes la del planeta Xúpiter, pero hasta'l momentu ello nun foi confirmáu.^[8]

Ver tamién

Llista d'estrelles cercanes a la Tierra

Referencies

1 2 3 4 Afirmao en: SIMBAD.
1 2 3 Afirmao en: Gaia EDR3. Stated in source according to: SIMBAD. Llingua de la obra o nome: inglés. Data d'espublización: 3 avientu 2020.
↑ M. Lampón (abril 2018). «The CARMENES search for exoplanets around M dwarfs. High-resolution optical and near-infrared spectroscopy of 324 survey stars» (n'inglés). Astronomy and Astrophysics: páxs. 49–49. doi:10.1051/0004-6361/201732054.
1 2 Nicola Astudillo-Defru (xunu 2017). «The HARPS search for southern extra-solar planets. XLI. A dozen planets around the M dwarfs GJ 3138, GJ 3323, GJ 273, GJ 628, and GJ 3293» (n'inglés). Astronomy and Astrophysics: páxs. 88–88. doi:10.1051/0004-6361/201630153.
↑ Jason Wright (xunetu 2021). «The California Legacy Survey. I. A Catalog of 178 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades» (n'inglés). The Astrophysical Journal Supplement Series (1): páxs. 8. doi:10.3847/1538-4365/ABE23C.
↑ Todd J. Henry (payares 1991). «A standard stellar spectral sequence in the red/near-infrared - Classes K5 to M9». The Astrophysical Journal Supplement Series: páxs. 417–440. doi:10.1086/191611.
1 2 LHS 33 - High proper-motion Star (SIMBAD)
1 2 3 Estrella de Luyten (Solstation)
↑ Luyten's Star, BD+51668 (Jumk.de/astronomie)
↑ The one hundred nearest star systems (RECONS)
↑ Reiners, A. (2007). «The narrowest M-dwarf line profiles and the rotation-activity connection at very slow rotation». Astronomy and Astrophysics 467 (1). páxs. 259-268. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2007A%26A...467..259R&db_key=AST&nosetcookie=1.
↑ Bonfils, X.; Delfosse, X.; Udry, S.; Santos, N. C.; Forveille, T.; Ségransan, D. (2005). «Metallicity of M dwarfs. I. A photometric calibration and the impact on the mass-luminosity relation at the bottom of the main sequence». Astronomy and Astrophysics 442 (2). páxs. 635-642. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2005A%26A...442..635B&db_key=AST&nosetcookie=1.

Coordenaes: 7^h 27^m 24.499^s, 5^° 13^′ 32.841^″

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[8ba559d5760a03bedaaacc3c347bbfe4981560bf-1] 1 2 3 4 Afirmao en: SIMBAD.

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

[2361909060399d4806afed555596a195f35ed509-3] M. Lampón (abril 2018). «The CARMENES search for exoplanets around M dwarfs. High-resolution optical and near-infrared spectroscopy of 324 survey stars» (n'inglés). Astronomy and Astrophysics: páxs. 49–49. doi:10.1051/0004-6361/201732054.

[d4068817bd8e75f8acd8df348001abcca04eb9b2-4] 1 2 Nicola Astudillo-Defru (xunu 2017). «The HARPS search for southern extra-solar planets. XLI. A dozen planets around the M dwarfs GJ 3138, GJ 3323, GJ 273, GJ 628, and GJ 3293» (n'inglés). Astronomy and Astrophysics: páxs. 88–88. doi:10.1051/0004-6361/201630153.

[a44d9a97bc87eaeee10abf86bcf7f301a57627cb-5] Jason Wright (xunetu 2021). «The California Legacy Survey. I. A Catalog of 178 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades» (n'inglés). The Astrophysical Journal Supplement Series (1): páxs. 8. doi:10.3847/1538-4365/ABE23C.

[08ee7ff42def886a6ac34e116f558f380fa1e84e-6] Todd J. Henry (payares 1991). «A standard stellar spectral sequence in the red/near-infrared - Classes K5 to M9». The Astrophysical Journal Supplement Series: páxs. 417–440. doi:10.1086/191611.

[SIMBAD-7] 1 2 LHS 33 - High proper-motion Star (SIMBAD)

[Solstation-8] 1 2 3 Estrella de Luyten (Solstation)

[9] Luyten's Star, BD+51668 (Jumk.de/astronomie)

[RECONS-10] The one hundred nearest star systems (RECONS)

[Reiners-11] Reiners, A. (2007). «The narrowest M-dwarf line profiles and the rotation-activity connection at very slow rotation». Astronomy and Astrophysics 467 (1). páxs. 259-268. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2007A%26A...467..259R&db_key=AST&nosetcookie=1.

[Bonfils-12] Bonfils, X.; Delfosse, X.; Udry, S.; Santos, N. C.; Forveille, T.; Ségransan, D. (2005). «Metallicity of M dwarfs. I. A photometric calibration and the impact on the mass-luminosity relation at the bottom of the main sequence». Astronomy and Astrophysics 442 (2). páxs. 635-642. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2005A%26A...442..635B&db_key=AST&nosetcookie=1.

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