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(34998) 1978 SE

(34998) 1978 SE
Caractéristiques orbitales
Époque (JJ 2458200,5)[1]
Établi sur 1 113 observ. couvrant 14480 (U = 0)
Demi-grand axe (a) 406,659 × 106 km[1]
(2,718 35 ua)
Périhélie (q) 358,342 × 106 km[1]
(2,395 37 ua)
Aphélie (Q) 454,976 × 106 km[1]
(3,041 33 ua)
Excentricité (e) 0,12[1]
Période de révolution (Prév) 1 637 j
(4,48 a)
Inclinaison (i) 13,91°[1]
Longitude du nœud ascendant (Ω) 140,15°[1]
Argument du périhélie (ω) 271,2°[1]
Anomalie moyenne (M0) 219,7°[1]
Catégorie Astéroïde de la ceinture principale[1],[2]
Caractéristiques physiques
Dimensions 7,589 km
Magnitude absolue (H) 13,7[1],[2]
Albédo (A) 0,101

Découverte
Date le [1],[2]
Découvert par Richard M. West[1],[2]
Lieu Observatoire de La Silla, au Chili[2]
Désignation 1978 SE
1996 NP3

(34998) 1978 SE est un astéroïde de la ceinture principale de 7,589 km de diamètre découvert en 1978.

Description

(34998) 1978 SE a été découvert le à l'observatoire de La Silla, au Chili, par Richard M. West.

Caractéristiques orbitales

L'orbite de cet astéroïde est caractérisée par un demi-grand axe de 2,72 ua, un périhélie de 2,40 ua, une excentricité de 0,12 et une inclinaison de 13,91° 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[1].

Caractéristiques physiques

(34998) 1978 SE a une magnitude absolue (H) de 13,7 et un albédo estimé à 0,101, ce qui permet de calculer un diamètre de 7,589 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

Liens externes

Références

  1. a b c d e f g h i j k l m n et o (en) « (34998) 1978 SE » [html], sur le site du Jet Propulsion Laboratory (consulté le )
  2. a b c d et e (en) « (34998) 1978 SE » [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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