(16316) 2089 T-1

(16316) 2089 T-1
Caractéristiques orbitales
Époque (JJ 2458200,5)[1]
Établi sur 1 187 observ. couvrant 17225 (U = 0)
Demi-grand axe (a) 480,630 × 106 km[1]
(3,212 81 ua)
Périhélie (q) 395,741 × 106 km[1]
(2,645 37 ua)
Aphélie (Q) 565,518 × 106 km[1]
(3,780 25 ua)
Excentricité (e) 0,18[1]
Période de révolution (Prév) 2 103 j
(5,76 a)
Inclinaison (i) 0,34°[1]
Longitude du nœud ascendant (Ω) 327,93°[1]
Argument du périhélie (ω) 328,01°[1]
Anomalie moyenne (M0) 342,9°[1]
Catégorie Astéroïde de la ceinture principale[1],[2]
Caractéristiques physiques
Dimensions 9,362 km
Magnitude absolue (H) 13,7[1],[2]
Albédo (A) 0,080

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 2089 T-1
1978 PD1
2000 GR70

(16316) 2089 T-1 est un objet de la ceinture principale d'astéroïdes extérieure de 9,362 km de diamètre découvert en 1971.

Description

(16316) 2089 T-1 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 3,21 ua, un périhélie de 2,65 ua, une excentricité de 0,18 et une inclinaison de 0,34° par rapport à l'écliptique[1]. Du fait de ces caractéristiques, à savoir un demi-grand axe entre 3,2 et 4,6 ua, il est classé, selon la JPL Small-Body Database, comme objet de la ceinture principale d'astéroïdes extérieure[1].

Caractéristiques physiques

(16316) 1971 T-1 a une magnitude absolue (H) de 13,7 et un albédo estimé à 0,080, ce qui permet de calculer un diamètre de 9,362 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) « (16316) 2089 T-1 » [html], sur le site du Jet Propulsion Laboratory (consulté le )
  2. a b c d et e (en) « (16316) 2089 T-1 » [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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