Aryabhata is widely recognized as the father of Indian astronomy for his significant contributions to the field in the 5th century CE.

Aryabhata was the first astronomer to propose the heliocentric model of the solar system, where the Earth and other planets revolve around the Sun.

Aryabhatiya is the renowned astronomical treatise written by Aryabhata, which contains his significant contributions to astronomy and mathematics.

Bhaskara II, also known as Bhaskaracharya, is credited with developing the concept of sine and cosine functions, which are fundamental in trigonometry.

Jantar Mantar is the name of the astronomical observatory built by Maharaja Jai Singh II in the 18th century, which consists of several architectural structures for astronomical observations.

Varahamihira, a renowned astronomer and astrologer, wrote the treatise 'Panchasiddhantika', which discusses five different astronomical systems prevalent in ancient India.

Brahma Sphuta Siddhanta is the astronomical treatise written by Brahmagupta, which contains significant contributions to astronomy, mathematics, and trigonometry.

Brahmagupta is credited with developing the concept of zero and the decimal system, which revolutionized mathematics and astronomy.

Lilavati is the name of the astronomical treatise written by Lilavati, which focuses on arithmetic, geometry, and algebra.

The authorship of 'Surya Siddhanta' is uncertain, but it is considered one of the most important astronomical treatises in ancient India.

Jantar Mantar is the name of the astronomical observatory built by Maharaja Sawai Jai Singh II in Jaipur, Rajasthan.

Bhaskara II wrote the treatise 'Siddhānta Shiromani', which consists of four parts covering astronomy, mathematics, and astrology.

Varahamihira wrote the astronomical treatise 'Panchasiddhantika', which discusses five different astronomical systems prevalent in ancient India.

Aryabhata was the first astronomer to propose the concept of the Earth's rotation on its axis, which was a significant contribution to astronomy.

Jantar Mantar is the name of the astronomical observatory built by Maharaja Jai Singh II in Delhi, India.