In ancient India, astronomy was primarily driven by religious and ritualistic needs, such as determining auspicious dates for ceremonies, festivals, and agricultural activities.

The Surya Siddhanta is a Sanskrit astronomical treatise that is regarded as the most influential and comprehensive text on ancient Indian astronomy.

Astronomers in ancient India held a prominent position in society, serving as advisors to kings and rulers, providing guidance on auspicious times for important events and decisions.

Lagadha, an ancient Indian astronomer, is believed to have introduced the concept of the zodiac, dividing the ecliptic into twelve equal parts.

Ancient Indian astronomers primarily relied on naked-eye observations to study celestial objects, as telescopes and other advanced instruments were not available at that time.

Aryabhata, a renowned ancient Indian astronomer, proposed the heliocentric model of the solar system, suggesting that the Earth and other planets revolve around the Sun.

Observatories in ancient India were primarily built for the purpose of observing celestial phenomena, conducting astronomical research, and advancing the understanding of the universe.

Varahamihira, an ancient Indian astronomer, is credited with discovering the precession of the equinoxes, which is the gradual shift in the position of the equinoxes over time.

Sanskrit was the primary language used in ancient Indian astronomical texts, as it was the language of scholarship and religious literature at that time.

Bhaskara II, an ancient Indian astronomer, proposed the concept of the nine planets, including the Sun and the Moon, which was later adopted by other cultures.

Sundials were the primary method used by ancient Indian astronomers to measure time, as they were simple to construct and provided accurate measurements based on the position of the Sun.

Aryabhata, an ancient Indian astronomer, proposed the concept of the Earth's rotation on its axis, challenging the prevailing belief that the Earth was stationary.

Stupas in ancient India were primarily constructed for religious purposes, such as enshrining relics of the Buddha and conducting rituals and ceremonies.

Aryabhata, an ancient Indian astronomer, proposed the concept of the Earth's revolution around the Sun, known as the heliocentric model, which was later adopted by other cultures.

Ancient Indian astronomers used mathematical calculations based on the positions of the Sun, Moon, and Earth to predict eclipses, demonstrating their advanced understanding of celestial mechanics.