INDIAN HISTORY

Detailed explanation-1: -Panchasiddhantika means five astronomical canons. It basically summarises the five other books of astronomy viz. Surya, Romaka, Paulisa, Vasistha and Paitamaha Siddhanta.

Detailed explanation-2: -Ancient Indian astronomy may be classified into two main categories: (1) the vedic astronomy and (2) the post vedic astronomy. The vedic astronomy is the astronomy of the vedic period i.e. the astronomy found in the vedic saṃhitas and brāhmanas and allied literature.

Detailed explanation-3: -Aryabhatta-I remodelled astronomy on scientific basic. He made pioneering discoveries in the realm of planetary motion. In his magnum opus Aryabhattiya, he propounded a mathematic heliocentric model and popularised the theory that earth rotates on its own axis.