< Back Next >Question of the DayOuter Moons I - Rings & Dead WorldsWhat are the types/characteristics of giant planet satellites?What is the Roche Limit of a Planet?Dead Worlds - Callisto & Co. How are their surfaces similar/different from theEarth’s Moon?1< Back Next > Giant Planet Satellites Rings Regular Satellites Irregular Satellites 2< Back Next >3< Back Next > Irregular Satellites Small (Asteroid Size) Formed by Capture (captured asteroids)Orbit: Prograde and Retrograde High Eccentricity High Inclination Far from planet4< Back Next >1< Back Next >2< Back Next >3< Back Next >4< Back Next > Regular Satellites Large (Earth’s Moon Size) Formed by Co-Accrection (like solar system)Orbit: Prograde Low Eccentricity - Nearly Circular Low Inclination - Orbit above equator Close to planetSynchronous Rotation - Same side toward planetComposed of Ice and Rock1< Back Next >2< Back Next >3< Back Next >4< Back Next > Rings Very Small (cm to m) Formed by ?Orbit: Prograde Very Low Eccentricity - Circular Very Low Inclination - Orbit above equator Very close to planet1< Back Next >2< Back Next >3< Back Next >4< Back Next >1< Back Next >2< Back Next >3< Back Next >4< Back Next >1< Back Next >2< Back Next >3< Back Next >4< Back Next >1< Back Next >2< Back Next >3< Back Next >4< Back Next >1< Back Next >2< Back Next >3< Back Next >4< Back Next >1< Back Next >2< Back Next >3< Back Next >4< Back Next >1< Back Next >2< Back Next >3< Back Next >4< Back Next >1< Back Next >2< Back Next >3< Back Next >4< Back Next >1< Back Next >2< Back Next >3< Back Next >4< Back Next >1< Back Next >2< Back Next > Regular Satellites Large (Earth’s Moon Size) Formed by Co-Accrection (like solar system)Orbit: Prograde Low Eccentricity - Nearly Circular Low Inclination - Orbit above equator Close to planetSynchronous Rotation - Same side toward planetComposed of Ice and Rock3< Back Next >4< Back Next >1< Back Next >2< Back Next >3< Back Next >CallistoDensity = 1.86 g/cm3A = 0.304< Back Next >1< Back Next >2< Back Next >3< Back Next >4< Back Next >1< Back Next >2< Back Next >3< Back Next >4< Back Next >1< Back Next >2< Back Next >3< Back Next >4< Back Next >1< Back Next >MimasDensity = 1.14 g/cm3A = 0.602< Back Next >3< Back Next >4< Back Next >RheaDensity = 1.24 g/cm3A = 0.601< Back Next >2< Back Next >3< Back Next >IapetusDensity = 1.02 g/cm3Size = 41% Moon4< Back Next >1< Back Next >2< Back Next >3< Back Next >4< Back Next >1< Back Next >2< Back Next >3< Back Next >4< Back Next >1< Back Next >2< Back Next
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