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The Solar System. -As Told by an IT-Training OneNote Class-. Mercury. Mercury is the closest planet to the sun Mercury orbits the sun in about 88 Earth days but takes 58 Earth days to rotate once . On this planet a year takes a (Mercury) day and a half!. Venus.
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The Solar System -As Told by an IT-Training OneNote Class-
Mercury • Mercury is the closest planet to the sun • Mercury orbits the sun in about 88 Earth days but takes 58 Earth days to rotate once. • On this planet a year takes a (Mercury) day and a half!
Venus We will not go over this in Class – Be sure to study the handout
Earth A billion years ago, the Moon was in a tighter orbit, taking just 20 days to go around us and make a month. A day on Earth back then was only 18 hours long. The Moon is still moving away -- about 1.6 inches (4 centimeters) a year. Meanwhile, Earth's rotation is slowing down, lengthening our days. In the distant future, a day will be 960 hours long! =G = Earth = Sun Formula for the gravitational forces between 2 masses
Mars • Crust: Silicate • Mantle: Silicate • Core: Iron Sulfide
Pluto • Pluto actually isn’t a planet but rather a dwarf planet! • We’ll talk about dwarf planets next time!