Largest moon in the Solar System
The current largest moon in the solar system record is 3,275 miles, held by Ganymede. Last checked October 9, 2026.
3,275
miles
Ganymede
- Holder
- Ganymede
- Record
- 3,275 miles
- Metric
- 5,270 km
- Exact figure
- About 5,270 km diameter
- Location
- Orbiting Jupiter
- Last checked
- October 9, 2026
Sources
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