Early Astronomers Crossword

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Across
  1. 5. How many stars were in the North Polar sequence?
  2. 7. has a telescope named after him
  3. 9. wrote the speech "The Need for Women in Science"
  4. 11. Hubble published a work on the relationship between ___ and distance in 1929
  5. 12. Which came first- Galileo or Galilei?
  6. 13. Miss Mitchell's ___
  7. 15. Copernicus' first work, The Little ____
  8. 16. Brahe observed this in Cassiopeia
Down
  1. 1. Tycho ___
  2. 2. Albert ___
  3. 3. ___ stars fluctuate light
  4. 4. the galaxy closest to ours
  5. 6. How many of Kepler's Laws are there?
  6. 8. Ptolemys' report of his astronomical observations
  7. 10. Einstein was the first to have experiment proof of ___
  8. 14. How many laws are outlined in Newton's "Philosophiae Naturalis Principia Mathematica"?
  9. 17. Einsteins' theory of relativity's equation