(16457) 1989 VF

(16457) 1989 VF
Caractéristiques orbitales
Époque (JJ 2458200,5)[1]
Établi sur 1 431 observ. couvrant 23903 jours (U = 0)
Demi-grand axe (a) 452,532 × 106 km[1]
(3,024 99 ua)
Périhélie (q) 426,334 × 106 km[1]
(2,849 87 ua)
Aphélie (Q) 478,731 × 106 km[1]
(3,200 12 ua)
Excentricité (e) 0,06[1]
Période de révolution (Prév) 1 922 j
(5,26 a)
Inclinaison (i) 10,39°[1]
Longitude du nœud ascendant (Ω) 35,58°[1]
Argument du périhélie (ω) 66,2°[1]
Anomalie moyenne (M0) 96,4°[1]
Catégorie Astéroïde de la ceinture principale[1],[2]
Caractéristiques physiques
Dimensions 10,947 km
Magnitude absolue (H) 12,8[1],[2]
Albédo (A) 0,134

Découverte
Date le [1],[2]
Découvert par Seiji Ueda et Hiroshi Kaneda[1],[2]
Lieu Kushiro (Japon)[2]
Désignation (16457) 1989 VF[1],[2]

modifier

(16457) 1989 VF est un astéroïde de la ceinture principale d'astéroïdes de 10,947 km de diamètre découvert en 1989.

Description

(16457) 1989 VF a été découvert le à Kushiro (Japon) par Seiji Ueda et Hiroshi Kaneda.

Caractéristiques orbitales

L'orbite de cet astéroïde est caractérisée par un demi-grand axe de 3,2 UA, un périhélie de 2,85 UA, une excentricité de 0,06 et une inclinaison de 10,39° 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

(16457) 1989 VF a une magnitude absolue (H) de 12,8 et un albédo estimé à 0,134, ce qui permet de calculer un diamètre de 10,947 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 2012 dans un article présentant les résultats concernant 13 511 astéroïdes de la ceinture principale[3].

Voir aussi

Articles connexes

Références

  1. ↑ a b c d e f g h i j k l m n o et p (en) « (16457) 1989 VF » [html], sur le site du Jet Propulsion Laboratory (consulté le )
  2. ↑ a b c d e et f (en) « (16457) 1989 VF » [html], sur le site du Centre des planètes mineures (consulté le )
  3. ↑ (en) Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; Cabrera, M. S., « Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids », The Astrophysical Journal, vol. 759, no 1,‎ (DOI 10.1088/2041-8205/759/1/L8)


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