Navigating the Night Sky

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Across
  1. 2. the force of attraction between masses
  2. 4. the line where the ocean meets the sky
  3. 9. three dimensional round shape
  4. 10. large, round object that orbiting a star
  5. 11. a huge sphere of hydrogen and helium gas that radiates heat and light
  6. 12. the star at the center of the solar system around which all of the solar system objects orbit
  7. 13. imaginary line that goes around the middle of Earth
Down
  1. 1. to move or travel around an object in a curved path
  2. 3. pictures made by connecting stars together
  3. 5. to direct how to get someplace
  4. 6. imaginary line that something orbits around
  5. 7. indicates how far something is north or south of the equator (coordinate stated first)
  6. 8. are imaginary lines used to identify how far east or west a place is located
  7. 11. the Sun and eight planets and other objects that orbit the sun