Kappa Capricorni

Kappa Capricorni
Datos d'observación; (Dómina J2000.0)
Constelación	Capricorniu
Ascensión reuta (α)	21h 42min 39,51s
Declinación (δ)	-18º 51’ 58,8’’
Mag. aparente (V)	+4,74
Carauterístiques físiques
Clasificación estelar	G8III
Masa solar	3,0 M☉
Radiu	(12 R☉)
Magnitú absoluta	-0,16
Gravedá superficial	2,48 (log g)
Lluminosidá	87 L☉
Temperatura superficial	5033 - 5038 K
Metalicidá	[Fe/H] = -0,43
Astrometría
Velocidá radial	-2,87 km/s
Distancia	294 años lluz (90 pc)
Paralax	11,09 ± 0,28 mas
Referencies
SIMBAD	enllaz
Otres designaciones
	43 Capricorni / HD 206453 / HR 8288 / HIP 107188 / SAO 164593
	[editar datos en Wikidata]

Kappa Capricorni (κ Cap / 43 Capricorni)^[1] ye una estrella na constelación de Capricorniu de magnitú aparente +4,74. Xunto a Nashira (γ Capricorni), Deneb Algedi (δ Capricorni), ε Capricorni y otres estrelles d'Acuariu y Piscis, en China formaben Luy Pei Chen, «el campu atrincherao».^[2]

Kappa Capricorni ye una xigante mariella de tipu espectral G8III^[1] con una temperatura efectivo de 5033 - 5038 K.^[3]^[4] Ye 87 vegaes más lluminosa que'l Sol^[5] y, como la mayor parte de les estrelles de la nuesa redolada, ye una estrella del discu finu.^[6] El so radiu, calculáu per aciu modelos teóricos, ye 12 vegaes más grande que'l radiu solar,^[5] ente que la midida direuta del so diámetru angular nuna tapecimientu llunar (1,80 ± 0,30 milisegundos d'arcu) conduz a un radiu 17 vegaes mayor que'l del Sol.^[7] Xira sobre sigo mesma con una velocidá de rotación proyeutada de 3,7 km/s.^[8]

Kappa Capricorni exhibe una metalicidá —bayura relativa d'elementos más pesaos que'l heliu— notablemente inferior a la del Sol ([Fe/H] = -0,43),^[4] práuticamente un terciu de la de la nuesa estrella. Tien una masa envalorada de casi trés mases solares^[3] y una edá ente 340 y 560 millones d'años.^[3]^[6] Alcuéntrase a 294 años lluz (90 pársecs) de distancia del Sistema Solar.

Referencies

↑ ^1,0 ^1,1 kap Cap -- Star (SIMBAD)
↑ Allen, Richard Hinckley (1889). «Capricorniu», Courier Dover Publications: Star Names — Their Lore and Meaning (n'inglés), páx. 563. ISBN 0-486-21079-0. Consultáu'l 16 d'agostu de 2012.
↑ ^3,0 ^3,1 ^3,2 Takeda, Y.; Sato, B.; Murata, D. (2008). «Stellar Parameters and Elemental Abundances of Late-G Giants». Publications of the Astronomical Society of Japan 60 (4). páxs. 781 - 802. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2008PASJ...60..781T&db_key=AST&nosetcookie=1.
↑ ^4,0 ^4,1 Wu, Yue; Singh, H. P.; Prugniel, P.; Gupta, R.; Koleva, M. (2011). «Coudé-feed stellar spectral library - atmospheric parameters». Astronomy and Astrophysics 525. A71. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2011A%26A...525A..71W&db_key=AST&nosetcookie=1.
↑ ^5,0 ^5,1 Massarotti, Alessandro; Latham, David W.; Stefanik, Robert P.; Fogel, Jeffrey (2008). «Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity». The Astronomical Journal 135 (1). páxs. 209-231. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2008AJ....135..209M&db_key=AST&nosetcookie=1.
↑ ^6,0 ^6,1 Soubiran, C.; Bienaymé, O.; Mishenina, T. V.; Kovtyukh, V. V. (2008). «Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants». Astronomy and Astrophysics 480 (1). páxs. 91-101. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2008A%26A...480...91S&db_key=AST&nosetcookie=1.
↑ Richichi, A.; Percheron, I.; Khristoforova, M. (2005). «CHARM2: An updated Catalog of High Angular Resolution Measurements». Astronomy and Astrophysics 431 (4). páxs. 773-777. http://vizier.u-strasbg.fr/viz-bin/VizieR-5?-ref=VIZ503015y3634b&-out.add=.&-source=J/A%2bA/431/773/charm2&recno=177.
↑ Hekker, S.; Meléndez, J. (2007). «Precise radial velocities of giant stars. III. Spectroscopic stellar parameters». Astronomy and Astrophysics 475 (3). páxs. 1003-1009. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2007A%26A...475.1003H&db_key=AST&nosetcookie=1.

Coordenaes: 21^h 42^m 39.508^s, -18^° 51^′ 58.755^″

[SIMBAD-1] 1,0 ^1,1 kap Cap -- Star (SIMBAD)

[2] Allen, Richard Hinckley (1889). «Capricorniu», Courier Dover Publications: Star Names — Their Lore and Meaning (n'inglés), páx. 563. ISBN 0-486-21079-0. Consultáu'l 16 d'agostu de 2012.

[Takeda-3] 3,0 ^3,1 ^3,2 Takeda, Y.; Sato, B.; Murata, D. (2008). «Stellar Parameters and Elemental Abundances of Late-G Giants». Publications of the Astronomical Society of Japan 60 (4). páxs. 781 - 802. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2008PASJ...60..781T&db_key=AST&nosetcookie=1.

[Wu-4] 4,0 ^4,1 Wu, Yue; Singh, H. P.; Prugniel, P.; Gupta, R.; Koleva, M. (2011). «Coudé-feed stellar spectral library - atmospheric parameters». Astronomy and Astrophysics 525. A71. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2011A%26A...525A..71W&db_key=AST&nosetcookie=1.

[Massarotti-5] 5,0 ^5,1 Massarotti, Alessandro; Latham, David W.; Stefanik, Robert P.; Fogel, Jeffrey (2008). «Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity». The Astronomical Journal 135 (1). páxs. 209-231. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2008AJ....135..209M&db_key=AST&nosetcookie=1.

[Soubiran-6] 6,0 ^6,1 Soubiran, C.; Bienaymé, O.; Mishenina, T. V.; Kovtyukh, V. V. (2008). «Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants». Astronomy and Astrophysics 480 (1). páxs. 91-101. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2008A%26A...480...91S&db_key=AST&nosetcookie=1.

[CHARM2-7] Richichi, A.; Percheron, I.; Khristoforova, M. (2005). «CHARM2: An updated Catalog of High Angular Resolution Measurements». Astronomy and Astrophysics 431 (4). páxs. 773-777. http://vizier.u-strasbg.fr/viz-bin/VizieR-5?-ref=VIZ503015y3634b&-out.add=.&-source=J/A%2bA/431/773/charm2&recno=177.

[Hekker-8] Hekker, S.; Meléndez, J. (2007). «Precise radial velocities of giant stars. III. Spectroscopic stellar parameters». Astronomy and Astrophysics 475 (3). páxs. 1003-1009. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2007A%26A...475.1003H&db_key=AST&nosetcookie=1.

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