Lunar Vocab Hawboldt

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Across
  1. 1. when the Moon is completely dark from Earth's perspective
  2. 4. The _____ cycle predicts the occurrence rate of eclipses (about 18 years)
  3. 5. the time it takes the Moon to go through all of its phases is called a _____ month
  4. 7. large lighter areas on the Moon that contain hills and mountains
  5. 8. when the Moon is losing brightness over successive nights
  6. 9. (the slightly darker area next tot he umbra
  7. 10. the fully dark area during an eclipse (Latin for shadow)
  8. 12. large dark areas on the Moon's surface (Latin for lake)
  9. 13. the material that is thrown out due to a meteor impact
  10. 16. this is what it is called when the Moon blocks the light from the Sun from reaching Earth
  11. 17. the type of month is based on the Moon's position relative to the stars
  12. 18. directly above an observer
  13. 19. the point in the orbit of a satellite where it is closest to the Earth
  14. 21. when the Moon is illuminated between 50% and 100%
  15. 22. The point in the orbit of a satellite where it is furthest from the Earth
  16. 23. when the Moon is fully illuminated from Earth's perspective
  17. 25. when 50% of the Moon is illuminated
  18. 26. a fissure or narrow channel on the Moon's surface
  19. 27. plural or mare (Latin word for lake)
  20. 28. when two celestial objects are close to each other in the sky
Down
  1. 2. the light that is reflected off of the Earth that illuminates the Moon
  2. 3. the line that separates the night side from the day side
  3. 5. this is what it is called when the Earth blocks the light from the Sun from reaching the Moon
  4. 6. directly below an observer
  5. 11. long lines scored in the Moon's surface that radiate from impact craters
  6. 14. when the Moon is gaining brightness over successive nights
  7. 15. how much light gets reflected by an object
  8. 16. any object that orbits another object
  9. 20. when two celestial objects are on opposite sides of the sky from each other
  10. 24. when the Moon is illuminated between 0% and 50%