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Unformatted text preview: 1 Jovian Planets II Voyager I , II the grand tour Galileo J up i ter and the Ga li ean moon s Huygens de s c ent i nto T i tan s atmo s phere Cassini-Huygens s eparat i on Todays Lecture: purpose & goals AST 1002 Planets, Stars and Galaxies describes the Jovian planets general properties size , & composition temperature magnetic fields rings , & moons specific properties of each planet. planets discoveries (Uranus, Neptune, & Pluto) Huygens: l and i ng s i te panorama f rom T i tan s sur f a c e Voyager I , II the grand tour Galileo J up i ter and the Ga li ean moon s Cassini-Huygens S aturn and i t s moon s Review Voyager 1&2 : the grand tour mission to all the gas giants in order, use gravity to slingshot spacecraft from one planet to the next. long 12 year mission (1977-1989) First real close-up view of these gas giants array of cameras , magnetometers and spectrometers Galile o: detailed study of Jupiter and its moons. launched in 1989, at Jupiter from 1995-2001 probe into Jupiters upper atmosphere. Spectacular study of Ios volcanoes and the subsurface oceans on Europa Cassini/Huygens : detailed study of Saturn and its moons. launched in 1997, at Saturn NOW !!; into orbit in July 2004 Huygens soft lander probe into Titans atmosphere and surface (January 2005). found methane oceans, rivers and springs on Titan and studying Saturns rings, atmosphere, and moons. Missions of the starships: Huygens: f i rst c o l or i mage f rom T i tan s sur f a c e Huygens: l and i ng s i te panorama f rom T i tan s sur f a c e Cassini-Huygens Cassini-Huygens S aturn and i t s moon s Cassini- i mage of s ma l moon Phoebe (2004) Cassini- i mage of t i tan i n IR ( J an 2005) s ee s through c ont i nuou s c l oud l ayer . Cassini- rad i o i mage of t i tan ( J an 2005) s urfa c e feature s, methane l ake s, et c .. Launched Kennedy Space Center in Oct. 1997 Reached Saturn in July 2004. International collaboration NASA , European Space Agency ( ESA ), & Italian Space agency Mission Cassini orbiter to orbit Saturn and its moons for next four years, taking data on the planet and its rings, and moons. Huygens probe landed on Titan Jan. 14, 2005. Studied the moons of Saturn in multiple flybys....
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