Jupiter-Like Planets

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Jupiter-Like Planets
The Jovian Planets
Jupiter Saturn Uranus Neptune
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Appearances
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Clouds
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Insides
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p. 172
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Jupiter Saturn
Liquid molecular hydrogen/helium
Liquid metallic hydrogen
Rocky core
p. 175
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p. 175
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Uranus Neptune
Liquid molecular hydrogen/helium
Slush
Rocky core
p. 175
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Most Jovians are net radiators . . .
Jupiter 2 Saturn 3 Uranus 1 Neptune 1.5
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Jovians rotate differentially . . .
? Fluid interior
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Magnetic Fields
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Fluid, conducting interiors rapid rotation
? huge magnetic fields
Strange geometry
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Jovian Magnetospheres
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Jupiter Saturn Aurorae
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Atmospheres
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No solid surfaces! Composition mainly
hydrogen helium some methane ammonia.
Heated mainly from bottom. Rapid rotation
drives high-speed east-west winds, forming
clouds into zones belts. Sustain giant
cyclonic storms - Great Red Spot - Great
Dark Spot
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Jupiters atmosphere
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p. 175
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Great Red Spot . . . Cyclonic Storm
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Great Red Spot (Jupiter)
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Red Spot Movie
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Great Dark Spot (Neptune)
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Galileo atmospheric probe
- 230 oF
300 oF
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Blue-green of Uranus Neptune is due to methane
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Moons
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Jupiters Family
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(No Transcript)
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Io
Recent volcanic deposits
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Volcanic Plumes
Sulfur deposits
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Volcano from above
Lava lake?
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Europa
Icy Surface
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Water beneath the ice?
Cracks in the Ice
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Ice Rafts
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p. 175
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Ganymede
Craters in icy crust
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Strange grooved terrain suggestive of
tectonic activity . . .
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Callisto
The most heavily cratered body in the Solar
System!
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Valhalla Impact Basin
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Saturns Moons
Titan
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Titan
90 nitrogen
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Cassini mission to Saturn (Arrival 2004)
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Enceladus
Rhea
Dione

• Densities 1.2 1.4 g/cm3
• Ice rock interiors
• icy surfaces.

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Some of Saturns minor satellites.
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Moons of Uranus
Miranda
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Miranda
Groovy terrain!
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Neptune 8 moons
Neptune
Triton
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Triton
Cantaloupe terrain
Nitrogen ice surface
Temp - 390 oF
South polar cap
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Streaks probably result from nitrogen geysers.
Dark streaks
Old Faithful
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Clouds in a thin nitrogen atmosphere.
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Rings
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RINGS
Consist of particles, each following an orbit
about a planet, like a small moon.
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Jupiter smoke particles.
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Saturn chunks of ice icy rock
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Braids in the F Ring.
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Shepherd satellites (moons) and F Ring.
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Ring Spokes.
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(No Transcript)
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Uranus Dark chunky ring particles.
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Neptune Dark chunky ring particles.