(7374) 1980 DL

(7374) 1980 DL
Caractéristiques orbitales
Époque (JJ 2458200,5)[1]
Établi sur 817 observ. couvrant 13922 jours (U = 0)
Demi-grand axe (a) 392,606 × 106 km[1]
(2,624 41 ua)
Périhélie (q) 286,745 × 106 km[1]
(1,916 77 ua)
Aphélie (Q) 498,467 × 106 km[1]
(3,332 04 ua)
Excentricité (e) 0,27[1]
Période de révolution (Prév) 1 553 j
(4,25 a)
Inclinaison (i) 3,94°[1]
Longitude du nœud ascendant (Ω) 331,86°[1]
Argument du périhélie (ω) 151,8°[1]
Anomalie moyenne (M0) 353,6°[1]
Catégorie Astéroïde de la ceinture principale[1],[2]
Caractéristiques physiques
Dimensions 2,727 km
Magnitude absolue (H) 15,0[1],[2]
Albédo (A) 0,343

Découverte
Date le [1],[2]
Découvert par Zdeňka Vávrová[1],[2]
Lieu Observatoire Kleť (République tchèque)[2]
Désignation 1980 DL[1],[2]

(7374) 1980 DL est un astéroïde de la ceinture principale de 2,727 km de diamètre découvert en 1980.

Description

(7374) 1980 DL a été découvert le à l'observatoire Kleť, en République tchèque, en Bohême-du-Sud, par Zdeňka Vávrová.

Caractéristiques orbitales

L'orbite de cet astéroïde est caractérisée par un demi-grand axe de 2,62 UA, un périhélie de 1,92 UA, une excentricité de 0,27 et une inclinaison de 3,94° par rapport à l'écliptique[1]. Du fait de ces caractéristiques, à savoir un demi-grand axe compris entre 2 et 3,2 UA et un périhélie supérieur à 1,666 UA, il est classé, selon la JPL Small-Body Database, comme objet de la ceinture principale[2].

Caractéristiques physiques

(7374) 1980 DL a une magnitude absolue (H) de 15,0 et un albédo estimé à 0,343, ce qui permet de calculer un diamètre de 2,727 km. Ces résultats ont été obtenus grâce aux observations du Wide-Field Infrared Survey Explorer (WISE), un télescope spatial américain mis en orbite en 2009 et observant l'ensemble du ciel dans l'infrarouge, et publiés en 2011 dans un article présentant les premiers résultats concernant les astéroïdes de la ceinture principale[3].

Voir aussi

Articles connexes

Références

  1. a b c d e f g h i j k l m n et o (en) « (7374) 1980 DL » [html], sur le site du Jet Propulsion Laboratory (consulté le )
  2. a b c d e f et g (en) « (7374) 1980 DL » [html], sur le site du Centre des planètes mineures (consulté le )
  3. (en) Joseph R Masiero, A. K Mainzer, T. Grav, J.M. Bauer, R.M. Cutri, J. Dailey, P.R.M. Eisenhardt, R.S. McMillan, T.B. Spahr, M.F. Skrutskie, D. Tholen, R.G. Walker, E.L. Wright, E. DeBaun, D. Elsbury, T. Gautier, S. Gomillion, A. Wilkins, « Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters », The Astrophysical Journal, vol. 741, no 2,‎ (DOI 10.1088/0004-637X/741/2/68)


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