Final answer:
Ancient Greece contributed to our understanding of astronomical concepts through the development of the geocentric model, observations of celestial bodies, introduction of constellations, and the foundation for trigonometry in astronomy.
Step-by-step explanation:
Ancient Greece made several important contributions to our current understanding of astronomical concepts.
Firstly, they developed the geocentric model of the universe, which proposed that Earth was the center and everything revolved around it. Although this model was later proven incorrect, it laid the foundation for further study and understanding of celestial motions.
Secondly, Greek astronomers such as Eratosthenes made significant observations and measurements of celestial bodies. For example, Eratosthenes accurately measured the size of the Earth, which was a remarkable achievement considering the limitations of their technology at that time.
Additionally, the Greeks introduced the concept of constellations. These patterns of stars played a crucial role in early navigation and have become an important part of modern astronomy and sky observation.
Furthermore, Ancient Greece laid the foundation for trigonometry in astronomy. Astronomers like Hipparchus used trigonometry to calculate distances and angles in relation to celestial objects, which greatly enhanced our understanding of the universe.