What are jovian planets like thick hydrogen helium

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Unformatted text preview: ust particles, rather than icy boulders. Jupiter: Discovered by Voyager spacecraft in 1979 Uranus: Discovered in 1977 by telescope, Note its rings are tilted, just like the planet! Neptune: Discovered by Voyager spacecraft in 1989 Why do the other jovian planets have rings? ‣ Small ring particles dissipate over time ‣ Dust particle lifetime ~1000 years ‣ Need a source of new material to replenish the rings ‣ Jovian planets have small, close moons ‣ Impacts on these moons can provide material NASA/JPL/Cornell University How Jupiter’s rings are replenished with material 40 This process would provide dusty type material found in Jupiter’s rings, but not the larger icy boulders of Saturn’s rings What have we learned? ‣ What are jovian planets like? ‣ Thick hydrogen, helium atmospheres ...
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This note was uploaded on 10/23/2013 for the course ASTR 100 taught by Professor Dunne during the Fall '12 term at University of Illinois, Urbana Champaign.

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