the$outer$planets$ - university of...
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The Outer Planets
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Jupiter in a nutshell
• Orbital distance = 5.2 AU • One Jovian day = 9.9 hours • One Jovian year = 11.9 years • Mass = 318 x Earth’s Mass • Radius = 10.5-‐11.2 x Earth’s Radius • Temperature: 165 K (1bar), 112 K (0.1bar) • Global magneQc field > 10 Qmes stronger than Earth’s
• 64 named moons (47 less than 10 km across)
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Orbital Resonance
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Io
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Aurora at Jupiter
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Aurora at Jupiter
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Europa
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Saturn in a nutshell
• Orbital distance = 9.6 AU • One Kronian day = 10.6 hours • One Kronian year = 29.5 years • Mass = 95 x Earth’s Mass • Radius = 8.5-‐9.5 x Earth’s Radius • Temperature: 134 K (1bar), 84 K (0.1bar) • Global magneQc field comparable to Earth’s • 62 moons, 53 have names
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Aurora at Saturn
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Aurora at Saturn
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Titan
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Titan
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Enceladus
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Enceladus
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Enceladus
Temperatures in Kelvin Max maybe as high as 160K
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Uranus & Neptune
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Uranus & Neptune
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Uranus
Miranda
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Neptune
Triton