Astronomy & Solar System

Solar System Note Taking

2. What is between Mars and Jupiter? (p. 670) 1. List the planets in order of closest to the farthest from the Sun. (p.644) 2. What is between Mars and Jupiter? (p. 670) SUN Neptune Mercury Asteroid Belt Venus Uranus Earth Mars Saturn Jupiter

Inner Planets Outer Planets 3. How are the planets grouped? (p.646-647) The INNER and OUTER planets SUN Inner Planets Outer Planets Neptune Mercury Asteroid Belt Venus Uranus Earth Mars Saturn Jupiter

Rocky and Dense Mercury, Venus, Earth , Mars SUN 4. Which are the terrestrial planets? (p.646) 5. What do terrestrial planets have in common? (p.648) Mercury, Venus, Earth , Mars Rocky and Dense SUN Inner Planets Outer Planets (Terrestrial) Neptune Mercury Asteroid Belt Venus Uranus Earth Mars Saturn Jupiter

Rocky and Dense J.S.U.N. SUN Gaseous Surface All have rings Many moons 6. Which are the Gas Giants? (p.647) J.S.U.N. 7. What do Gas Giants have in common? (p.648) Rocky and Dense SUN Inner Planets Outer Planets (Terrestrial) (Gas Giants) Neptune Mercury Asteroid Belt Venus Uranus Earth Mars Saturn Jupiter Gaseous Surface All have rings Many moons

Rocky and Dense Rocky and Dense - Giant Gaseous All have rings 8. How are the inner planets similar to Earth? (p.648) Rocky and Dense 9. How are the outer planets different than the inner planets? (p.654) Neptune Rocky and Dense (Inner Planets) (Outer Planets) Mercury Uranus Venus Earth Saturn Mars Jupiter Asteroid Belt - Giant Gaseous All have rings All have many moons

The Planets orbit: ellipse 10. What shape is the orbit of the planets around the Sun? (p. 631 top) Some Ellipse (oval) Some Circular 11. Draw the shape (the path of a planet around the Sun): (p. 646) The Planets orbit: ellipse SUN

Astronomy Note taking

SUN Earth Centered Sun Centered 1. Draw a “Geo-Centric” model of a solar system (p.555) 2. Draw a “Helio-Centric” model of a solar system (p.555) Earth Centered Sun Centered SUN

Near the outer edge of the ORION ARM 3. Which galaxy do we live in? (p.596) Milky Way Galaxy 4. What type of galaxy it this? (p.596, figure 1) Spiral Galaxy * * We are here Near the outer edge of the ORION ARM * Side view

5. What is the “Big Bang” Theory (p.601) The Universe began from a tiny point, exploded, and is now continuing to expand.

About 13 – 15 Billion years old About 4 - 5 Billion years old 6. About how old is our UNIVERSE? (p.601) About 13 – 15 Billion years old 7. About how old is our solar system? (p.614) About 4 - 5 Billion years old

8. Saturn has many rings. What are they made of? (p.655) Mostly icy Particles, some rocks All Gaseous Giants have rings. Jupiter, Saturn, Uranus, and Neptune all have rings.

Ice, rock, and cosmic dust packed together. 9. What is a comet? (p.668) Ice, rock, and cosmic dust packed together. Most of the comets we see come from the Kuiper Belt

Tail always points away from the sun 11. Draw the comet and its tail 10. In which direction is the comet’s tail as it orbits the sun? (p.669) Tail always points away from the sun 11. Draw the comet and its tail Tail Nucleus Coma

Rocks (billions) orbiting the sun. 12. What is the asteroid belt and what is it made of? Rocks (billions) orbiting the sun. Mars Jupiter 13. Between which two planets is the asteroid belt located? (p.670) Mars and Jupiter