(2021) Poincaré

(2021) Poincaré
Caractéristiques orbitales
Époque (JJ 2457200,5)[1]
Établi sur ?
 observ. couvrant ?
(U = 0)
Demi-grand axe (a) 345,576 × 106 km[1]
(2,31 ua)
Périhélie (q) 269,280 × 106 km[1]
(1,80 ua)
Aphélie (Q) 421,871 × 106 km[1]
(2,82 ua)
Excentricité (e) 0,22[1]
Période de révolution (Prév) ~1 282 j
(3,51 a)
Inclinaison (i) 5,5°[1]
Longitude du nœud ascendant (Ω) 155,0°[1]
Argument du périhélie (ω) 164,1°[1]
Anomalie moyenne (M0) 154,0°[1]
Catégorie Astéroïde de la ceinture principale[1],[2]
Caractéristiques physiques
Magnitude absolue (H) 13,4[1],[2]

Découverte
Date le [1],[2]
Découvert par Louis Boyer[1],[2]
Lieu Alger[1]
Nommé d'après Henri Poincaré
Désignation 1936 MA
1968 UQ2
1971 LE[1],[2]

(2021) Poincaré est un astéroïde de la ceinture principale découvert par Louis Boyer en 1936.

Il a été baptisé en hommage à Henri Poincaré (1854-1912), mathématicien et physicien français.

Annexes

Articles connexes

Liens externes

Références

  1. a b c d e f g h i j k l m n et o (en) « (2021) Poincare », sur le site du Centre des planètes mineures (consulté le )
  2. a b c d et e (en) « 2021 Poincare » [html], sur ssd.jpl.nasa.gov, Jet Propulsion Laboratory (consulté le )

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