Ymir
Moon· orbits Saturn
Ymir is a moon orbiting Saturn.
Open in 3D viewSee Ymir in the live, interactive 3D map
Key facts
Radius
9.5 km
1% of our Moon's radius
Orbit around Saturn
3.6 Earth years
1,315 Earth days
Science
Physical
- Radius (estimated)
- 9.5 km · 1% of our Moon's radius
- Sized from its brightness assuming a dark (~0.04) surface — never resolved, so the true diameter (~19 km) could be off by a factor of two.
Orbit around Saturn
- Distance from Saturn
- 0.155 AU
- From JPL orbital elements
- Orbital period
- 3.60 years
- From JPL orbital elements
- Eccentricity
- 0.3148
- From JPL orbital elements
- Inclination to the J2000 equator
- 152.24 °
- From JPL orbital elements
Radiation & temperature
- Insolation
- 0.0114 S⊕ · 1% of the sunlight Earth receives
- Computed from the distance to the Sun (inverse-square; Earth's sunlight = 1), before any atmosphere.
Discovery & history
- By
- B. Gladman, J. Kavelaars, J.-M. Petit, H. Scholl, M. Holman, B.G. Marsden, P. Nicholson, J.A. Burns
Ymir was discovered in 2000 by B. Gladman and colleagues. Saturn's moons are named after giants and deities of world mythology — its distant irregular moons after Norse, Inuit and Gallic figures. Beyond its discovery and naming, little more about it has been individually recorded.
Images
Images from open archives · credit shown per image