(668) Dora

(668) Dora
Descubrimiento
Descubridor A. Kopff
Fecha 27 de julio de 1908
Lugar Observatorio de Heidelberg-Königstuhl
Designaciones 1908 DO
Nombre provisional 1908 DO
Categoría Cinturón de asteroides, Dora
Orbita a Sol
Elementos orbitales
Longitud del nodo ascendente 214,4501235317629  °
Inclinación 6,843624190705635  °
Argumento del periastro 113,1607625546559  °
Semieje mayor 2,792565447510919  ua
Excentricidad 0,2357306422510307
Anomalía media 233,9697280951941  °
Elementos orbitales derivados
Época 2458600,5 (2019-Apr-27,0) TDB[1][2]
Periastro o perihelio 2,134272201041133  ua
Apoastro o afelio 3,450858693980706  ua
Período orbital sideral 1704,525360293913 días
Características físicas
Diámetro 21,517 km.
Periodo de rotación 22,914 horas
Clase espectral
SMASSIICh
Magnitud absoluta 12.17
Albedo 0,042
Cuerpo celeste
Anterior (667) Denise
Siguiente (669) Cipria

(668) Dora es un asteroide perteneciente al cinturón de asteroides, región del sistema solar que se encuentra entre las órbitas de Marte y Júpiter, más concretamente a la familia de Dora,[3]​ descubierto el 27 de julio de 1908 por A. Kopff desde el Observatorio de Heidelberg-Königstuhl, Alemania.

Designación y nombre

Designado provisionalmente como 1908 DO. Fue nombrado Dora[4]​ en homenaje a una amiga de la esposa de August Kopff.

Características orbitales

Dora está situado a una distancia media del Sol de 2,792 ua, pudiendo alejarse hasta 3,450 ua y acercarse hasta 2,134 ua. Su excentricidad es 0,235 y la inclinación orbital 6,843 grados. Emplea 1704,52 días en completar una órbita[5]​ alrededor del Sol.

Características físicas

La magnitud absoluta de Dora es 12. Tiene 21,517 km de diámetro y su albedo se estima en 0,042. Está asignado al tipo espectral Ch según la clasificación SMASSII.

Véase también

Referencias

  1. «668». Web de Minor Planet Center (en inglés). Consultado el 21 de septiembre de 2019. 
  2. «(668) Dora». Web de JPL (en inglés). Consultado el 21 de septiembre de 2019. 
  3. «Familia a la que pertenece (668) Dora en la base de datos AstDyS-2» (en inglés). Consultado el 21 de septiembre de 2019. 
  4. Schmadel, Lutz D. (2012). Dictionary of Minor Planet Names (en inglés;) (6ª edición). Berlín: Springer-Verlag. ISBN 9783642297175. Consultado el 21 de septiembre de 2019. 
  5. «(668) Dora diagrama órbita» (en inglés). Consultado el 21 de septiembre de 2019. 

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