CROSSTELLATION

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Across
  1. 2. Observatory located in Bandung
  2. 6. Professions related to space
  3. 9. The study of everything in the universe
  4. 10. Farthest planet from the sun
  5. 12. Dwarf planet located in the Kuiper Belt
  6. 14. To magnify the image of a celestial body
  7. 15. Our solar system belongs to the...
  8. 16. A U.S. government agency that is responsible for science and technology related to air and space
  9. 18. A famous 'hole' in space
  10. 19. A group of visible stars
Down
  1. 1. Ninth largest celestial body
  2. 3. A ring planet
  3. 4. A celestial body that emits light of its own
  4. 5. Separating the inner and outer planets
  5. 7. Happening when the Sun, Moon, and Earth are perfectly aligned
  6. 8. "tailed star"
  7. 11. An attractive force that exists between all objects with mass
  8. 13. The object's orbital motion around another object
  9. 15. Natural satellite of the earth
  10. 17. Space vehicle