Question

What was the contribution of aryabhata to astronomy?

Answer 1

he has given a big contribution in astronomy as he told that earth is divided into two equal halves

Answer 2

Aryabhata I (476–550 CE) was the first of the major mathematician-astronomers from the classical age of Indian mathematics and Indian astronomy. His works include the Āryabhaṭīya (499 CE, when he was 23 years old) and the Arya-siddhanta.