What was Ptolemy's theory?

Related questions

1. How does the Ptolemaic system work?
2. How did Cleopatra's father died?
3. Was Cleopatra a descendant of Ptolemy?
4. What does Ptolemy mean?
5. When did Ptolemy rule Egypt?
6. What happened to Marcus Brutus?
7. Why was Ptolemy's theory important?
8. Why did Cleopatra marry her brother?
9. What information develops the central idea?
10. What happened to the son of Cleopatra and Caesar?

Tags

1. #increasing
2. #stars
3. #about
4. #ptolemaic
5. #center
6. #universe
7. #revolving
8. #earth
9. #orbits
10. #epicycles
11. #astronomical
12. #distance
13. #ptolemy
14. #planets
15. #circular
16. #which
17. #system