Astronomy

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Across
  1. 1. relating to the sun
  2. 5. when day and night is of equal length
  3. 7. the largest planet in our solar system
  4. 9. a moon, planet or machine that orbits a planet or a star
  5. 12. changes in the ocean water levels caused by the sun and the moon
  6. 13. the hottest planet in our solar system
Down
  1. 2. rocky objects that orbit the sun
  2. 3. the moment that the upper edge of the sun becomes visible
  3. 4. the imaginary line that Earth rotates around
  4. 6. path of an object around another object in space
  5. 8. all of space and time and everything in it
  6. 9. this is a result of light hitting an opaque object
  7. 10. relating to the moon
  8. 11. this planet has an icy ring around it