Semi-major axis vs. inclination. Dot size scales with moon diameter. Prograde moons cluster below 90°; retrograde moons appear above 90°.
Chart 02
Size Comparison
All 95 moons to scale. Each circle's diameter is proportional to the moon's actual diameter. Hover for details.
Chart 03
Eccentricity vs. Inclination
Orbital shape vs. orbital tilt. Inner and Galilean moons cluster near zero. Irregular moons fan out into high-inclination, high-eccentricity orbits.
Chart 04
Discovery Timeline
When each moon was found. Galileo's 1610 discoveries sit alone for 282 years. The Voyager missions and modern wide-field surveys revealed nearly all the rest.
Full Catalog
All 95 Moons
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