PHYS 284 Lecture 9: Lesson 9
Document Summary
Lesson 9- jovian planets: different kind of planet. Jupiter: 5. 20 au- easily visible in night sky but nakes eye cant tell the nature. Similar to sun, composed mostly of hydrogen and helium, Saturn: 9. 54 au easily visible in night sky. Similar to sun, composed mostly of hydrogen and helium. Composed mostly of hydrogen compounds (hydrogen, methane and ammonia), but still contains. Note: saturn is less dense than neptune and uranus, which makes sense because uranus and neptune are composed primarily of denser material than the gaseous materials saturn or jupiter is composed of. We would expect that jupiter to be less dense than saturn but it is not . Therefore, uranus and neptune {most dense}, jupiter {less dense than neptune and uranus}, Jupiter"s mass is more than 3 times that of saturn this means that the gravity squeezes the planet with a force greater than 3x that of saturn.
