Astronomy MT 1

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Across
  1. 6. point in the moon's orbit when it is farthest from Earth
  2. 8. Copernicus' contribution
  3. 10. science of studying the universe
  4. 11. point in the moon's orbit when it is closest to the Earth
  5. 14. orbital point farthest from the sun
  6. 17. bright areas of the moon
  7. 19. a galaxy 2.3 million light years away
Down
  1. 1. spinning of Earth on its axis
  2. 2. moon's lit side seems to be growing
  3. 3. the point where the sun appears to reach its highest or lowest point in the sky for the year
  4. 4. dark areas of the moon
  5. 5. occurs twice a year when the day and night are approximately equal length
  6. 7. orbital point nearest the sun
  7. 9. the total or partial obscuring of one celestial body by another
  8. 12. orbit around the sun
  9. 13. moon's lit side seems to be shrinking
  10. 15. distance light travels in 1 year
  11. 16. our galaxy
  12. 18. Ptolemy's contribution