Image:TheKuiperBelt Projections 55AU Classical Plutinos.svg

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TheKuiperBelt_Projections_55AU_Classical_Plutinos.svg‎ (SVG file, nominally 480 × 480 pixels, file size: 35 KB)

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Plots of the aligned orbits of the plutinos and classical objects. Plotted by a program written by Eurocommuter.

Both plots

  • The nodes of the orbits are brought to 270°; and the perihelia to 0° to simplify the comparison of the perihelia and aphelia
  • Objects plotted: classical in blue, plutions in red.1

Polar view

The aligned orbits are further reclined onto the ecliptic (i.e. rotated around the line of nodes by an angle opposite to the inclination) to allow for easy comparison of perihelia and aphelia.

  • Polar coordinates
    • Distance from the Sun (the small gold disk) in AU.
    • Argument not drawn
  • Yellow circle: 30AU (~Neptune’s orbit)

Ecliptic view

Projection of the aligned orbits on the plane x,z ((looking at the ecliptic from the edge); the point of view is the ascending node.

  • Polar coordinates.
    • Axis: distance form the Sun; perihelia on the left, aphelia on the right.
    • Angle: orbit inclination [°]
  • Yellow arc: 30AU (Neptune’s orbit) perihelion


1For roughly a half of known TNO the orbits are not yet known with the precision sufficient for the classification (a particularly delicate task for resonant objects).

Data source

Minor Planet Centre Orbit database as of Feb 14th, 2006 except for resonant orbits' classification. Minor Planet Circular 2005-X77 was used instead.


I, the copyright holder 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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File history

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Date/Time Dimensions User Comment
current 09:35, 3 March 2006 480×480 (35 KB) Eurocommuter (Orbit projections. Be Eurocommuter. Category:Astrophysics)
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