File:TheTransneptunians 500AU.svg

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The distribution and classification of the distant trans-Neptunian Objects.

The characteristics of an object in the graph represent:

  • Distance along horizontal axis
    • the object's orbital semi-major axis a in Astronomical Units
    • orbital period in years (in red)
  • Distance along vertical axis - the object's orbital inclination i in degrees
  • Size of the circle - the object’s size relative to others:
    • for a few large objects, the diameter drawn represents the best current estimates
    • for all the others, the diameter of the circle represents the absolute magnitude H of the object.


   Centaurs (not formally members of Trans-Neptunian objects, shown for reference only)
   Resonant objects - Plutinos and Resonant trans-Neptunian objects
   Detached objects (in white)

Data source[edit]

Minor Planet Center Orbit database (MPCORB) as of 2008-10-05. Resonant orbits' classification from MPEC Circular 2008-S05 (2008-10-01). Detached objects definition from Jewitt, Lacerda 2008. Diameter estimates include Stansberry et al (Spitzer). See refs in the related articles.

English: Distant Trans-Neptunian Objects
Date Original: Feb 2006; this version 18 Oct 2008
Source Generated by a program written by the author
Author Eurocommuter
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