File:Halimede orbit 3-panel view dark.svg

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    English: The orbits of Halimede (red) and other Neptunian irregular moons (gray), as seen from 3 different views. The major moons of Neptune (Triton and Nereid) are colored magenta.

    The positions of moons are plotted on the date 2026-Jan-01 00:00 UT, with fading trails representing past positions. The trajectories were acquired from the JPL Horizons Ephemeris Service via the "astroquery" Python package, and positions were plotted in matplotlib.

    The XY coordinates describe the ecliptic plane (plane of Earth's orbit). The left panel shows an oblique 3D view of the moons' orbits, the middle panel shows a 2D view from above the ecliptic (XY) plane, and the right panel shows a 2D view from the side.
    Date
    Source Own work; moon orbit data obtained from JPL, Python code partially written by Claude AI, fact-checked and corrected by Nrco0e. Source code is located at the following GitHub repository: https://github.com/chirochrone/irregular-moons-3-panel-orbit-diagrams/tree/main
    Author Nrco0e

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    w:en:Creative Commons
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    This file is licensed under the Creative Commons Attribution 4.0 International license.
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    • to share – to copy, distribute and transmit the work
    • to remix – to adapt the work
    Under the following conditions:
    • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

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    inception

    3 July 2026

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