Spcae explortaion

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Across
  1. 3. our solar system is called
  2. 4. a could of dust and gas in space
  3. 5. inner planets
  4. 8. outer-most part of the Sun's atmosphere
  5. 10. determines which compass direction it can be found in the sky.
  6. 15. planets will follow this orbit.
  7. 16. is the position in the sky directly overhead
  8. 17. outer planets
  9. 19. represents the shortest and longest periods of daylight
Down
  1. 1. groups of stars that are not officially recognized as constellations.
  2. 2. tells you how far above the horizon the object is.
  3. 6. occurs when the earth passes between the sun and the moon
  4. 7. large explosions in the Sun's atmosphere
  5. 9. are groups of stars we see as patterns in the night sky
  6. 11. small pieces of rocks and metal in space
  7. 12. The sun centred model.
  8. 13. is the time when day time and night time are equal
  9. 14. The earth was fixed and the center of the universe
  10. 18. large glowing ball of gas