Ancient Indian astronomy was primarily used for navigation, as it helped sailors determine their location and direction at sea.

Varahamihira, a renowned ancient Indian astronomer, is credited with developing the concept of the zodiac, which divides the ecliptic into twelve equal parts.

Ancient Indian astronomy helped calculate the distance between different locations, which was crucial for planning and navigating trade routes.

The quadrant, an ancient Indian astronomical instrument, was used to measure the altitude of celestial bodies above the horizon.

Ancient Indian astronomy provided accurate star charts, which were essential for sailors to navigate and determine their location at sea, facilitating the development of maritime trade.

Aryabhata, a renowned ancient Indian astronomer, developed the concept of the precession of the equinoxes, which refers to the gradual shift in the position of the equinoxes over time.

Ancient Indian astronomy played a crucial role in calculating the length of the year, which was essential for developing accurate calendar systems.

The sundial, an ancient Indian astronomical instrument, was used to measure the time of day by observing the position of the sun.

Ancient Indian astronomy helped predict the best time for planting crops based on celestial observations, which was crucial for successful agriculture.

Aryabhata, a renowned ancient Indian astronomer, developed the concept of the heliocentric model of the solar system, which places the sun at the center.

Ancient Indian astronomy played a significant role in the development of astrology, as it provided the basis for predicting the future based on celestial observations.

The armillary sphere, an ancient Indian astronomical instrument, was used to observe and study celestial bodies, such as stars, planets, and constellations.

Ancient Indian astronomy provided a framework for mathematical calculations, such as trigonometry and geometry, which were essential for astronomical observations.

Aryabhata, a renowned ancient Indian astronomer, developed the concept of the lunar eclipse, explaining it as the result of the Earth's shadow falling on the moon.

Ancient Indian astronomy played a role in determining auspicious dates for religious ceremonies and festivals based on celestial observations.