Astronomy Key Terms

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Across
  1. 5. a telescope that uses radio waves to produce an image.
  2. 7. a system of objects that revolve around a star.
  3. 10. separates light into different color bands.
  4. 11. The full range of electromagnetic waves.
  5. 12. a device placed in orbit.
  6. 13. A device used to see distant objects.
  7. 15. The remains of collapsed star with a massive gravitational pull.
  8. 16. a group of galaxies.
  9. 17. A large cloud of dust in space.
  10. 18. a telescope that uses lenses to produce an image.
Down
  1. 1. used to collect data from outside of earth.
  2. 2. a collection of stars and planets.
  3. 3. an observatory outside of earth's atmosphere.
  4. 4. The change in color and brightness of a star.
  5. 6. a telescope that uses mirror to produce an image.
  6. 8. everything that exists.
  7. 9. the circular path of one object around another.
  8. 14. a massive ball of gas that gives off radiation.