Moon of Saturn
Prometheus
A moon of Saturn.
At Saturn.
Measured
- Mean radius
- 43.1 km
- Goes round once every
- 14.8 hours
- Distance from Saturn
- about 139,400 km (its orbit's average)
- Orbit
- inclined 0°, eccentricity 0.002
- JPL / NAIF id
- 616
How far, from the Earth
About 8.7 AU. To cross it:
- Light1 hour 12 minutes
- Voyager 1's speed2.44 years
- Driving at 100 km/h1,480 years
Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.
Where this comes from
- Moons: JPL Planetary Satellite Mean Elements and Physical Parameters, paced to JPL Horizons. NASA/JPL-Caltech. Sizes JPL leaves out are estimates, mostly from brightness: Scott Sheppard's moon pages at Carnegie.
Every catalogue Ouranos draws is credited on the credits page.