Vocabulary

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Across
  1. 4. distance between the sun and the earth
  2. 8. Anything that orbits another object
  3. 9. a group of millions of stars that orbit a central point
  4. 10. a proportion between two sets of measurements
Down
  1. 1. the sun and all the planets
  2. 2. closest star to earth, center of the solar system
  3. 3. Way the galaxy that contains our solar system
  4. 5. curved path an object takes around a large object
  5. 6. a curved line
  6. 7. a stretched circle