Image:TheKuiperBelt 75AU Large.svg

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(voir plus loin pour la description en français) Large Kuiper belt objects. Generated by a program written by Eurocommuter.

Main graph

  • The position of an object represents
    • its orbit’s semi-major axis a in AU (horizontal axis)
    • orbit’s inclination i in degrees (vertical axis).
    • the eccentricity of the orbit is shown indirectly by a segment extending from the left (perihelion) to the aphelion to the right. In other words, the segment illustrates the variations of the object's distance from the Sun. Objects with nearly circular orbits will show short segments while highly elliptical orbits will be represented by long segments.
  • Spheres
    • The size of the sphere illustrates the object’s size relative to others.
      • For some large objects, the diameter drawn represents the best current estimates.
      • For all others, the circles represent the absolute magnitude of the object.
    • Colour
      • The colours (corresponding to B-V,R-V indices) are represented when known. (Otherwise neutral colours are assumed).
    • Albedo
      • The differences in albedos are also illustrated (The range of albedos is wide; if shown directly the dim objects would be hardly visible. Instead, a logarithmic function is used.)
    • Labels
      • red for plutinos
      • blue for classical objects
      • grey for scattered objects
  • Grid
    • Main resonances with Neptune are marked with vertical bars; 1:1 marks the position of Neptune’s orbit (and its Trojan asteroids), 2:3 marks the orbit of Pluto (and its moons) etc.

Data source

  • Orbits and magnitudes: MPCORB as of Feb 14th, 2006
  • Colour indexes from MBOSS base: Hainaut & Delsanti (2002) Colour of Minor Bodies in the Outer Solar System Astronomy & Astrophysics, 389, 641 as of Mar. 13th, 2006

Large Kuiper belt objects.


Plotted by a program written by the User:Eurocommuter


04 April 2006; last update 14 Sep 2006




see Licence tag

Description en français

Grands objets de la Ceinture de Kuiper et les objets épars. Graphe généré par un programme écrit par Eurocommuter.

Graphe principal

La position d’un objet représente

  • le demi axe majeur (rayon moyen) de son orbite a en au (unité astronomique, l'axe horizontal)
  • l’inclination de son orbite i en degrés (axe vertical).

Le diamètre du cercle montre la taille relative de l’objet aux autres. Pour quelques grands objets, le diamètre représente la meilleure estimation connue. Pour tous les autre, le diamètre du cercle représente la magnitude absolue de l’objet. L’excentricité de l’orbite est représentée indirectement par un segment qui s’étend du périhélie à gauche) l’aphélie à droite. En d’autres termes, le segment illustre les variations de la distance du Soleil. Les objets avec des orbites quasi circulaires ont donc des courts segments et les orbites très excentriques sont repérées par des segments longs.

Les positions des résonances avec Neptune sont marqués par des traits verticaux; 1:1 marque la position de l’orbite de Neptune (et ses Troyens), 2:3 marque l’orbite de Pluton (et ses lunes) etc.

Source des donnés

La base de donnés MPCORB au 14 Février 2006.


I, the author of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled " GNU Free Documentation License".

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