Crossword Puzzle prepared by Desiree Ann Yambao

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Across
  1. 6. What is the result of changing positions of the sun throughout the year?
  2. 8. Ancient astronomers, such as the Greeks were aware of the slow, cylical ____.
  3. 9. Who relied on naked eye observations to study the night of the sky?
  4. 11. _____ stars was distinguished from the fixed stars.
  5. 13. What moves across the sky sometimes appearing to mobe backward before resumung their normal path?
  6. 14. The patterns of stars and constellations were created for ____ of years.
  7. 15. Exceptionally bright star in the night sky is called as _____.
  8. 18. Because of its regular occurence,multiple meteors appear to radiate from a specific point in the sky.
  9. 19. What was developed by ancient cultures based on celestial events making solstices and equinoxes?
  10. 20. Where was the multiple meteors noticed?
Down
  1. 1. They have been identifying patterns of stars and creating constellations.
  2. 2. Over long periods, the positions of stars and constellations shift due to Earth's____.
  3. 3. The ____ of bright stars and visible planets was a key aspect of ancient astronomy.
  4. 4. They often interpreted the appearance of comets as_____.
  5. 5. What kind of motion when planets move backward?
  6. 7. Also known as exceptionally bright star.
  7. 10. It has distinctive tails and were observed by ancient astronomers.
  8. 12. It is the regular occurence of the moon passing infront of the sun.
  9. 16. _____ constellation is associated with the meteor showers.
  10. 17. The scattered sunlight by interplanetary dust along the solar system.