Hipparchus's Trigonometry and Star Catalogue (c. 130 BCE)
130 BCE · Rodos · cultural
Hipparchus computed trigonometric tables; he discovered the phenomenon of precession (the shifting of the axis); his cataloguing of 850 stars was the first great systematic work of astronomy; and he calculated the distance of the Moon as 377,000 km (the true figure is 384,400).
What was Hipparchus's Trigonometry and Star Catalogue (c. 130 BCE)?
Hipparchus computed trigonometric tables; he discovered the phenomenon of precession (the shifting of the axis); his cataloguing of 850 stars was the first great systematic work of astronomy; and he calculated the distance of the Moon as 377,000 km (the true figure is 384,400).
When did Hipparchus's Trigonometry and Star Catalogue (c. 130 BCE) happen?
130 BCE
Where did Hipparchus's Trigonometry and Star Catalogue (c. 130 BCE) take place?