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摘要
The irregular satellites of Jupiter. Plotted by a program written by Eurocommuter.
Main graph
The position of a satellite represents
- its orbit’s semi-major axis a in Gm (horizontal axis)
- orbit's inclination i (to the ecliptic) in degrees (vertical axis).
- the size of the circle illustrates the satellites's size relative to others:
The eccentricity of the orbit is shown indirectly by a segment extending from the left (pericenter) to the apocentre to the right. In other words, the segment illustrates the variations of the object's distance from the planet. The percentage in blue shows the fraction of the Lagrangian point at which the semi-major axes of the moon lie.
Satellites beneath the axis (i>90) are retrograde. (above the axis are prograde, and other are retrograde)
Data source
- Mean Orbital Elements JPL (Aug 2006).
- Size estimations: Sheppard Sheppard pages (Aug 2006)
许可协议
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| 当前 | 2006年9月1日 (五) 09:45 |  | 400 × 400(22 KB) | wikimediacommons>Eurocommuter~commonswiki | Clean up (larger scale for diams) |
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