| Rhea > Titan > Hyperion |
Name
Discovery date
- March 25, 1655[1]
Discoverer
- Christian Huygens[1]
Orbiting
Characteristics
- Mass = 0.0225 Earth mass[1]
- Radius = 0.404 Earth radius[1]
- Density = 1.88 g/cm³[1]
- Semi-major axis = 1,221,870 km[1]
- Eccentricity = 0.0288[1]
- Orbital period = 15.9 Earth days[1]
- Rotation period = Synchronous rotation[1]
- Atmosphere = Thick nitrogen[1]
- Surface temperature = 93.7 K[1]
About the moon
- Second largest moon of the Solar System.[1]
- Larger, but less massive than Mercury.[1]
- Represent more than 96% of the mass in orbit around Saturn, the six other main moons constitute roughly 4%, while the remaining 54 small moons, together with the rings, comprise only 0.04%.
- Known for its clouds and complex atmosphere.[1]
Sources
References
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