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Stars, Planets, and Moons. Cornell Notes Page 81. Stars. a massive sphere of gas so much pressure (from its own gravity), nuclear fusion takes place- this gives off light and heat ! the Sun is our closest star. http://www.seasky.org/cosmic/sky7a01.html. To scale or not to scale?. Planets. - PowerPoint PPT Presentation
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Stars, Planets, and Moons
Cornell Notes Page 81
Stars • a massive sphere of gas • so much pressure (from its own gravity), nuclear fusion takes place- this gives off light and heat!• the Sun is our closest star
http://www.seasky.org/cosmic/sky7a01.html
To scale or not to scale?
Planets • body that revolves around a star• large enough to be rounded by own gravity• has cleared an orbit for itself
Planets • body that revolves around a star• large enough to be rounded by own gravity• has cleared an orbit for itself- Pluto has debris in its path- not a true planet!
Moons • celestial body that orbits a planet or dwarf planet.
Solar System on a Sentence Strip
• Please follow along with me!
Our Solar System
Our Solar System
• 8 planets revolve around our sun, as well as many other celestial bodies• Heliocentric
4 Inner Planets
• Mercury, Venus, Earth, Mars• “Terrestrial Planets”• Small, dense, rocky
Asteroid Belt
• Between Mars and Jupiter• Many irregularly shaped bodies called asteroids and minor planets
4 Outer Planets
• Jupiter, Saturn, Uranus, Neptune• Very Large • “Gas Giants” and “Ice Giants”
Pluto • Originally the 9th planet• Located in the Kuiper Belt- (similar to the asteroid belt but objects are small and icy) along with Eris, another dwarf planet.