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Summary
| Description |
English: Polar plot showing the time-averaged (proper) semimajor axis and inclination of Jupiter's Himalia group of irregular moons, known as of April 2026. Each moon is plotted as an open circle in polar coordinates (x=acos(i), y=asin(i)), with the point size representing the moon's physical diameter. Semimajor axis distances are shown in units of gigameters (Gm) or million (106) km. Notable moons (biggest diameters, isolated members, etc.) are labeled with gray text and arrows.
This plot was created in Python, using the pandas, matplotlib, and numpy libraries. Orbital elements were obtained from JPL's Planetary Satellite Mean Elements page, while size (and absolute magnitudes) were obtained from the MPC's Natural Satellites Ephemeris Service. Note that the MPC website gives absolute magnitude H, not diameter; H is converted into diameter via the formula here. |
| Date | |
| Source | Own work; source code available at https://github.com/chirochrone/irregular-moons-aei-polar-diagrams/tree/main/Jupiter/Zoomed%20polar%20plots |
| Author | Nrco0e |
| Other versions |
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Licensing
I, the copyright holder of this work, hereby publish it under the following license:
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:23, 2 May 2026 | | 821 × 537 (94 KB) | Nrco0e | Inkscape crop settings: width=616pt, height=403pt, x=46,y=97, w=616, h=403 |
| 19:39, 2 May 2026 |  | 960 × 768 (76 KB) | Nrco0e | Uploaded own work with UploadWizard |
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