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Terrestrial Planets What it would be like to walk on its surface Slight bounce to your step (lighter). Sun would get larger s the day goes on due to the slow rotation. Weather None- no atmosphere Topography- surface features Scarps- long cliffs Planet is shrinking Caloris Basin- largest impact crater Weird terrain- jumbled hills Huge iron core Venus Feel very heavy due to pressure. Hard to move around. Pancake volcanos (flat volcanos) Mount Maxwell- taller than Everest Mostly flat with two huge mountain areas Coronae- cracks in the surface Earth Like walking to class. Always cloudy Carbon Dioxide atmosphere Sulfuric acid clouds, little wind on the surface. Variable, can be extreme or mild. Mars Slight bounce to your step (lighter). Very dusty, but easy to move around. Dust devils Global wind storms. Little Olympus Mons- largest mountain Valles Marineris- deepest canyon Very flat in the northern hemisphere Mercury Plate tectonics Water in triple state Life Polar caps Aurora- strong magnetic field pressure to do much damage however. Thin atmosphere very steep in the southern hemisphere. Polar ice caps Once had liquid water on surface Possibilities of life Temperature -300 F 750 F Your Weight 38 lbs Planet Diameter 3,000 miles Rotation (day) 59 days Revolution (year) 88 days Venus 880 F 900 F 90 lbs 7,520 miles 243 days 224 days Earth -75 135 F 100 lbs 8,000 miles 1 day 1 year Mars -160 F 80F 38 lbs 4,225 miles 1.6 days 1.88 years Mercury Jovian Planets Spacecraft Pioneer 10 Pioneer 11 Voyager 1 Voyager 2 Galileo Ulysses Cassini New Horizons Juno Pioneer 11 Voyager1 Voyager 2 Cassini Composition Hydrogen, helium Ammonia clouds Features Great Red Spot Huge magnetic field- Aurora Lightning storms Thin rings Moons 63 Hydrogen, helium Ammonia clouds 47 Uranus Voyager 2 Hydrogen, helium Methane (blue color) Neptune Voyager 2 Hydrogen, helium Methane (blue color) Can float in water Huge magnetic field- Aurora Lightning storms Cassini Division- gap in rings Shepherd moons keep rings in place Tilted on its side- extreme seasons Magnetic axis is not lined up with pole Magnetic axis is off center to core Sometimes featureless Possible diamond aerosol layer rings Great Dark Spot Magnetic axis is not lined up with pole Magnetic axis is off center to core Possible diamond aerosol layer rings Jupiter Saturn 27 13 Temperature -274 F 293 F Your Weight 253 lbs Diameter 88,700 miles Rotation (day) 10 hours Revolution (year) 12 years Saturn -270 F 290 F 107 lbs 74,900 miles 10.5 hours 29.5 years Uranus -355 F 4,200 F 90 lbs 31,700 miles 7 hours 84 years Neptune -30 F 5,000 F 110 lbs 30,775 miles 17.7 hours 165 years Jupiter
