Lunar crossword

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Across
  1. 2. the rising and falling levels in the ocean
  2. 5. Term used to describe the first & last quarter moons
  3. 8. Phase of the moon between the waning gibbous and crescent moons
  4. 12. The movement of a sphere
  5. 15. When the moon is complete
  6. 16. The natural satellite of Earth
  7. 17. When the moon decreases in visibility
  8. 18. The illumination it goes while orbiting the earth
  9. 19. Phase that occurs during the Last Quarter and the New Moon
  10. 20. The brightness of a celestial body
Down
  1. 1. When the moon is 50% complete
  2. 3. Similar to sunrise
  3. 4. When the moon increases in visibility
  4. 6. Another meaning for 'new moon'
  5. 7. The first quarter of the moon
  6. 9. Term used to describe both quarter moons
  7. 10. The opposite of moon rise
  8. 11. Any interference between the sun & earth
  9. 13. When the moon is no longer visible
  10. 14. When the Sun is covered by the moon