Astronomy Crossword

1234567891011
Across
  1. 4. What is our presentation about?
  2. 5. Where was Hipparchus born?
  3. 7. What did Aristarchus use to estimate values?
  4. 8. Who first used trigonometry?
  5. 9. Who created the Heliocentric model?
  6. 10. How did Aristarchus die?
  7. 11. What book did Ptolemy create?
Down
  1. 1. What did Astronomers research?
  2. 2. Who built onto Aristotle's systems?
  3. 3. Where was Aristarchus born?
  4. 6. Where did Ptolemy live?
  5. 9. Who figured out the earth was spherical?