100709 - ASTR 100 1/30/12 Jupiters Moons Notes on the board...

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ASTR 100 1/30/12 Jupiter’s Moons Notes on the board -Roche Limit (look up definition) & Rings + (IO Torus) -Sizes of all solar system objects -Moons of Jupiter 63 total – 4+4+6+ Retrograde ones -Galilean Moons – All in synchronous rotation -1.8 days IO – Volcanoes -3.6 days Europa – Ice Sheet Surface -7.2 days Ganymede – Largest Callisto – Valhalla Impact Giant Plants all have rings -Rings around have been discovered two ways: -watching starlight diminish -seeing them directly by SCATTERED LIGHT -forward-scattered light is easy to see -back-scattered light is more difficult to see Jupiter’s 63 Moons -4 small inner moons move prograde -4 LARGE Galilean moons move prograde -6 smaller outer moons move prograde -49 small outer moons move retrograde Jupiter’s 4 Galilean Moons -Probably formed in a small disk around Jupiter as a “miniature Solar System” - Io + Europa + Ganymede + Callisto -Orbital Periods: 1.8 days, 3.6 days, 7.2 days, 16.7 days
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This note was uploaded on 01/27/2012 for the course CHEM 121 taught by Professor 1212 during the Spring '11 term at University of Illinois at Urbana–Champaign.

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100709 - ASTR 100 1/30/12 Jupiters Moons Notes on the board...

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