PES 105 Uranus - 1/15/12 PES 105 Uranus PES 105 Fall 2001...

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Unformatted text preview: 1/15/12 PES 105 Uranus PES 105 Fall 2001 Pe i General Astronom I Lec e Ne Lec e Lecture Notes: Uranus e : Cha e 9: Sec i 9.3 Introduction and General Properties He e i a g d i f if He e i a g d i f i f h :// . a e ca e .c He e i a i i h ic e ai ab he U a : h :// ed . .a i a i , ic e a d a i a i / a /e g/ a .h fU a : h ://a ab Ua a.ed /bi a/ /a .h : .g fc. a a.g /a d/i de /U a .h di c e ed i 1781 (d b ed i e f Ua i ch a a e ha J i e e !) Sa a = 15 Ea h e = 64 Ea h a bed = 0.66 . . . . c d c e ed de i = 1.3 g/c 3 => e i e ga i id Motions orbit: bi a e i d = 84 ea www.uccs.edu/ tchriste/courses/PES105/105lectures/105lecuranus.html 1/5 1/15/12 PES 105 Uranus ro a ion: ai e i d = 17 h fa ea a e fa e ha e "diffe e ia a i " a i a i i ed 98 deg ee a i g i ' ide ! f Ea h i eab ' e e g ea a hi f ac ii i h a gia Fig e 9.22 a He e i a i h hi i . [Li a ic e h i gh a eii a ? Fig e 9.22] he a e i ie ed. In erior b e e ag e ic fie d i ce i a e , e ec i id i ide ag e ic a i i i ed a f Thi a i a i h e ab h :// . a e ca e .c / Iea ai a i - Wh ? he ag e ic fie d: a /ca / a /fie d.h c e: www.uccs.edu/ tchriste/courses/PES105/105lectures/105lecuranus.html 2/5 1/15/12 PES 105 Uranus higl differentiated not enough pressure for liquid h drogen or liquid metallic h drogen Figure 9.19 also show a cross section of Uranus. [Link to Figure 9.19] no obvious heat source inside A mo phe e Composition: (from spectroscop ) h drogen helium methane reflects blue light, absorbs red light gives Uranus blue color Cic la ion from: weak convection mainl from distant Sun rotation see fain belts and ones www.uccs.edu/ tchriste/courses/PES105/105lectures/105lecuranus.html 3/5 1/15/12 PES 105 Uranus fai if e ea e e a e (efficie ci c a i ) His tor ba ica he a e a e ce a he ga gia ib e c i i ! i h a gia a e i i a ea i he hi - iig ae ide Moons : 15 ai ice a d c e ed i h da a a e ha face a e d a ai ch ec d M d c a e ed bi mos t inte re s ting moon: M iranda (#11) a ch i f: d egi ( a c a e ) g egi dee ca a d high Fig e 9.21 h ic e ai f fea e Mi a da. [Li Fig e 9.21] Rings di c e ed i 1977 11 i g each a ic e bi i de e de ( be Ke e ' 3 d a ) a ic e a e da ig ae a a d hi a ic e a e a ge (ab 1 e e i i e) Fig e 9.20 h he e f i g [Li Fig e 9.20] Pe i Lec e - - - INDE OF LECTURES - - - Ne Lec e www.uccs.edu/ tchriste/courses/PES105/105lectures/105lecuranus.html 4/5 1/15/12 PES 105 Uranus RETURN o Lec e No e O line la pda e: 11/12/101 www.uccs.edu/ tchriste/courses/PES105/105lectures/105lecuranus.html 5/5 ...
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