Jupiter • Largest planet (1300 Earths would fit inside!!! • 2.5x the gravity than on Earth • Jupiter radiates more energy into space than it receives from the Sun http://apod.nasa.gov/apod/image/0212/jupiterIo_cassini_full.jpg Jupiter’s Galilean Moons Developed by Barbara J. Shaw http://photojournal.jpl.nasa.gov/catalog/PIA00343 Jupiter’s Galilean Moons http://www.astro.psu.edu/users/niel/astro1/slideshows/class41/010-jupiter-galilean-moons.jpg Size in Relationship to Jupiter http://www.carinasoft.com/voyager4/info/images/ThreeMoonsOnJupiter.jpg Size Compared to Earth http://homepages.wmich.edu/%7Ekorista/ss-images/solarsys_compsizes.jpg Night 1 -2 -1 +1 +2 Night 2 -2 -1 +1 +2 Night 3 -2 -1 +1 +2 Night 4 -2 -1 +1 +2 Night 5 -2 -1 +1 +2 Night 6 -2 -1 +1 +2 Night 7 -2 -1 +1 +2 Night 8 -2 -1 +1 +2 Night 9 -2 -1 +1 +2 Now you predict Night 10 -2 -1 +1 +2 Night 10 -2 -1 +1 +2 Can you place each moon in orbit around Jupiter? -2 -1 +1 +2 http://www.ox.ac.uk/images/maincolumn/257_Jupiter_from_Cassini.jpg Answer Callisto Ganymede Europa -2 -1 +1 Io +2 Stopped by a cop • He said, “Do you know how fast you are going?” • I replied, “That, sir, is relative…” http://www.dkimages.com/discover/previews/957/90054129.JPG How Fast? • I was driving 55 miles per hour, but… http://www.zenconsulting.net/jasonkehr/images/T1000.jpg How Fast? • The Earth, at the equator, rotating on it’s axis – 1,040 miles per hour – In Portland, roughly 520 mile per hour http://apod.nasa.gov/apod/image/0703/bluemarble_apollo17_big.jpg How Fast? • The Earth revolving around the sun – 67,000 miles per hour http://www.ecology.com/archived-links/earths-orbit/index_files/earthorbit.gif How Fast? • The Sun revolving around the Milky Way Galaxy – 486,000 miles per hour http://apod.nasa.gov/apod/ap011004.html How Fast? • The Milky Way Galaxy moving with the local cluster towards the constellation Hydra – 1,340,000 miles per hour http://apod.nasa.gov/apod/ap020123.html How Fast? • So, Officer, it is all relative, and 55 is insignificant! – I still got the ticket… http://www.rps.psu.edu/probing/graphics/light.jpg