Astronomy Part 1

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Across
  1. 4. It lies at the center of the solar system in the Geocentric Model.
  2. 6. One of the forces at work when our solar system formed.
  3. 9. The emission lines in a spectrum reveal these in a star.
  4. 10. The only star in our solar system: The _______.
  5. 12. Besides Hot temperatures it is needed to start fusion.
  6. 14. Device used to break down the light of a star.
  7. 16. The current stage of life our Sun is in.
  8. 18. Layer of the Sun where nuclear fusion takes place.
  9. 19. A collapsed star that leaves behind its strong gravity.
  10. 20. Planet with the Greenhouse Effect.
Down
  1. 1. One of the famous scientists who believed in the Heliocentric Model.
  2. 2. The only layer of the Sun we see on a regular basis.
  3. 3. Solar system model where the Earth is the center.
  4. 5. This directly determines the color of a star: _______ Temperature
  5. 7. Solar system model we believe today.
  6. 8. It lies between Mars and Jupiter.
  7. 11. Color of the hottest star.
  8. 13. A huge cloud of gas and dust where things form in space.
  9. 14. The color line created by a spectroscope.
  10. 15. Name of nebula that went on to create our solar system.
  11. 17. Area of science we are studying.