(17294) 2787 P-L

(17294) 2787 P-L
Caractéristiques orbitales
Époque (JJ 2458200,5)[1]
Établi sur 1 689 observ. couvrant 20820 (U = 0)
Demi-grand axe (a) 366,463 × 106 km[1]
(2,449 65 ua)
Périhélie (q) 325,867 × 106 km[1]
(2,178 29 ua)
Aphélie (Q) 407,059 × 106 km[1]
(2,721 02 ua)
Excentricité (e) 0,11[1]
Période de révolution (Prév) 1 400 j
(3,83 a)
Inclinaison (i) 3,98°[1]
Longitude du nœud ascendant (Ω) 171,010°[1]
Argument du périhélie (ω) 75,3°[1]
Anomalie moyenne (M0) 108,2°[1]
Catégorie Astéroïde de la ceinture principale[1],[2]
Caractéristiques physiques
Dimensions 4,748 km
Magnitude absolue (H) 13,8[1],[2]
Albédo (A) 0,149

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 2787 P-L
1978 EZ2
1997 HC6
1998 RM20

(17294) 2787 P-L est un astéroïde de la ceinture principale d'astéroïdes de 4,748 km de diamètre découvert en 1960.

Description

(17294) 2787 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 2,45 ua, un périhélie de 2,18 ua, une excentricité de 0,11 et une inclinaison de 3,98° 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

(17294) 1960 P-L a une magnitude absolue (H) de 13,8 et un albédo estimé à 0,149, ce qui permet de calculer un diamètre de 4,748 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) « (17294) 2787 P-L » [html], sur le site du Jet Propulsion Laboratory (consulté le )
  2. a b c d et e (en) « (17294) 2787 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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