ASTR 151 1st Edition Lecture 29 Outline of Last Lecture I Planet Neptune Uranus II Chapter 13 Section 1 III Chapter 13 Section 2 Outline of Current Lecture IV Chapter Sections Review V Chapter 13 5 Current Lecture I Chapter Sections Review a Both have no metallic hydrogen molecular hydrogen slush and rocky core b Both have substantial magnetic fields c What makes magnetic fields in Jovian planets i Rotating metallic hydrogen d Why does Uranus Neptune seem blues ish i Methane in the atmosphere absorbs red light II Chapter 13 Moons Section 5 a ALL Jovian planets have rings none as grand as Saturn s i Uranus has 13 rings due to collisions 1 Named after Shakespeare characters 2 Narrow 3 Two shepherd moons keep epsilon ring from diffusing ii Neptune has 9 rings b Uranus has 27 moons i Largest is called Miranda These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute 1 Origins of cracks and grooves are unknown c Neptune has 14 moons i Triton and Nereid 1 Triton only large moon with retrograde motion a Similar to Pluto in composition b Made of frozen nitrogen with nitrogen geysers c Probably captured from the Keipler belt by Neptune s orbit d Has ice volcanoes
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