Indian Mathematicians and Astronomers

Varahamihira wrote the influential work 'Surya Siddhanta', which contains detailed astronomical observations and theories.

Varahamihira developed the concept of the zodiac and the nine planets, which played a significant role in Indian astrology.

Aryabhata calculated the Earth's diameter with remarkable accuracy, approximating it to 12,742 kilometers.

Bhaskara II wrote the influential work 'Lilavati' on mathematics and astronomy, which covered topics such as arithmetic, algebra, and astronomy.

Aryabhata, who lived in the 5th century CE, is widely regarded as the father of Indian astronomy due to his significant contributions to the field.

Aryabhata, in his work titled 'Aryabhatiya,' proposed a heliocentric model where the Earth rotates on its axis and revolves around the Sun.

Varahamihira, who lived in the 6th century CE, is renowned for his work on the 'Brihat Samhita,' which covers various aspects of astrology, including planetary influences, weather predictions, and gemology.

Brahmagupta, who lived in the 7th century CE, is credited with developing the concept of 'ardharatrika,' which involves observing the position of stars to determine the time of night.

Bhaskara II, who lived in the 12th century CE, is known for his work on the 'Lilavati,' a comprehensive treatise on mathematics and astronomy that covers topics such as arithmetic, geometry, and planetary motion.

Aryabhata, in addition to his work on the 'Aryabhatiya,' also developed the 'Surya Siddhanta,' a treatise on astronomy that provided detailed calculations for planetary positions and eclipses.

Varahamihira, in addition to his work on the 'Brihat Samhita,' also developed the 'Panchasiddhantika,' a treatise that compared five different astronomical systems, including the Surya Siddhanta and the Romaka Siddhanta.

Aryabhata is credited with developing the concept of zero in the 5th century AD.

Bhaskara II developed the theory of planetary motion known as the 'Bhavana-krama' in the 12th century AD.

Aryabhata proposed the idea of a heliocentric model of the solar system in the 5th century AD.

Brahmagupta developed the theory of planetary motion known as the 'Graha-ganita' in the 7th century AD.