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(16295) 4820 P-L

(16295) 4820 P-L
Caractéristiques orbitales
Époque (JJ 2458200,5)[1]
Établi sur 744 observ. couvrant 21060 (U = 0)
Demi-grand axe (a) 456,549 × 106 km[1]
(3,051 84 ua)
Périhélie (q) 442,220 × 106 km[1]
(2,956 06 ua)
Aphélie (Q) 470,879 × 106 km[1]
(3,147 63 ua)
Excentricité (e) 0,03[1]
Période de révolution (Prév) 1 947 j
(5,33 a)
Inclinaison (i) 9,43°[1]
Longitude du nœud ascendant (Ω) 21,78°[1]
Argument du périhélie (ω) 94,7°[1]
Anomalie moyenne (M0) 169,1°[1]
Catégorie Astéroïde de la ceinture principale[1],[2]
Caractéristiques physiques
Dimensions 5,081 km
Magnitude absolue (H) 14,0[1],[2]
Albédo (A) 0,188

Découverte
Date le [1],[2]
Découvert par Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld et Tom Gehrels[1],[2]
Lieu Observatoire Palomar, Californie[2]
Désignation 4820 P-L
1992 SW4
2000 EA167

(16295) 4820 P-L est un astéroïde de la ceinture principale d'astéroïdes de 5,081 km de diamètre découvert en 1960.

Description

(16295) 4820 P-L a été découvert le à l'observatoire Palomar, situé au nord de San Diego en Californie, par Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld et Tom Gehrels.

Caractéristiques orbitales

L'orbite de cet astéroïde est caractérisée par un demi-grand axe de 3,5 ua, un périhélie de 2,96 ua, une excentricité de 0,03 et une inclinaison de 9,43° 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 d'astéroïdes[1].

Caractéristiques physiques

(16295) 1960 P-L a une magnitude absolue (H) de 14,0 et un albédo estimé à 0,188, ce qui permet de calculer un diamètre de 5,081 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) « (16295) 4820 P-L » [html], sur le site du Jet Propulsion Laboratory (consulté le )
  2. a b c d et e (en) « (16295) 4820 P-L » [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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