Block, SkipCaptcha, Upload, Automoderated users, delete, edit, rollback
7,537
edits
Changes
Jump to navigation
Jump to search
Line 4:
Line 4: − +
→Ptolemy's system
==Ptolemy's system==
==Ptolemy's system==
Ptolemy invented the most elaborated geocentric system, allowing the planets not only to move on circles around the earth, but using epicycles. By adding further ideas, he was able to predict the motion of the planets quite well. Ptolemy's model was extremely popular from ancient times until the 1600s, as it had better agreement with observation than any alternative. His model was particularly effective at cosmological predictions.
[[Ptolemy]] invented the most elaborated geocentric system, allowing the planets not only to move on circles around the earth, but using epicycles. By adding further ideas, he was able to predict the motion of the planets quite well. Ptolemy's model was extremely popular from ancient times until the 1600s, as it had better agreement with observation than any alternative. His model was particularly effective at cosmological predictions.
However, during the 1500s and 1600s, alternatives were proposed. The [[Denmark|Danish]] astronomer [[Tycho Brahe]] made the most accurate observations possible before the invention of the telescope. These showed discrepancies within Ptolemy's system.
However, during the 1500s and 1600s, alternatives were proposed. The [[Denmark|Danish]] astronomer [[Tycho Brahe]] made the most accurate observations possible before the invention of the telescope. These showed discrepancies within Ptolemy's system.