Lalla, a 6th-century astronomer, is credited with introducing the concept of zero in Indian astronomy.

Lalla Siddhanta is a significant astronomical text written by Lalla that provides detailed descriptions of planetary motions and other astronomical phenomena.

Bhaskara I's primary goal was to reform the Hindu calendar and make it more accurate.

Pancasiddhantika is Bhaskara I's most famous work, which presents a critical analysis of five major astronomical systems of his time.

Bhaskara I is credited with formulating the law of cosines, a fundamental theorem in trigonometry.

Lalla successfully predicted a solar eclipse using his mathematical calculations.

Bhaskara I's astronomical observations primarily focused on understanding planetary movements and their patterns.

Bhaskara I invented the quadrant, an astronomical instrument used to measure the altitude of celestial bodies.

Lalla proposed that the Earth's rotation is caused by the motion of the Sun.

Bhaskara I accurately calculated the duration of lunar eclipses.

Lalla's primary contribution to astronomy was introducing the concept of zero.

Lalla Siddhanta provides detailed descriptions of planetary positions and their movements.

Bhaskara I combined mathematical calculations with observational methods in his astronomical studies.

Lalla successfully predicted a solar eclipse using his mathematical calculations.

Bhaskara I is credited with formulating the law of cosines, a fundamental theorem in trigonometry.