(1778) Alfvén

(1778) Alfvén
(1778) Alfven
Caractéristiques orbitales
Époque (JJ 2457200,5)[1]
Établi sur ?
 observ. couvrant ? (U = 0)
Demi-grand axe (a) 471,239 × 106 km[1]
(3,15 ua)
Périhélie (q) 411,399 × 106 km[1]
(2,75 ua)
Aphélie (Q) 531,079 × 106 km[1]
(3,55 ua)
Excentricité (e) 0,13[1]
Période de révolution (Prév) ~2 038 j
(5,58 a)
Inclinaison (i) 2,5°[1]
Longitude du nœud ascendant (Ω) 106,3°[1]
Argument du périhélie (ω) 136,0°[1]
Anomalie moyenne (M0) 41,5°[1]
Catégorie Astéroïde de la ceinture principale[1],[2]
Caractéristiques physiques
Magnitude absolue (H) 11,8[1],[2]

Découverte
Date le [1],[2]
Découvert par Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld et Tom Gehrels[1],[2]
Lieu Observatoire Palomar[1]
Nommé d'après Hannes Alfvén
Désignation 4506 P-L[1],[2]

modifier

(1778) Alvén est un astéroïde de la ceinture principale découvert le par Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld et Tom Gehrels à l'observatoire Palomar[3].

Il a été nommé plus tard d'après Hannes Olof Gösta Alfvén.

Voir aussi

Références

  1. ↑ a b c d e f g h i j k l m n et o (en) « (1778) Alfven », sur le site du Centre des planètes mineures (consulté le )
  2. ↑ a b c d et e (en) « 1778 Alfven » [html], sur ssd.jpl.nasa.gov, Jet Propulsion Laboratory (consulté le )
  3. ↑ (en) Caractéristiques et simulation d'orbite de 1778 dans la JPL Small-Body Database.. Consulté le 2 octobre 2012.


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