Varāhamihira, a renowned astronomer and astrologer of the 6th century CE, is widely recognized for his contributions to the development of the zodiac system.

The Surya Siddhanta had a profound impact on Chinese astronomy, particularly during the Tang Dynasty (618-907 CE), where it influenced the development of calendars, astronomical instruments, and computational methods.

Aryabhata, a brilliant mathematician and astronomer of the 5th century CE, is credited with introducing the concept of the zero in mathematics and astronomy, revolutionizing numerical calculations.

Ancient Indian astronomers developed all three trigonometric functions: sine, cosine, and tangent, laying the foundation for trigonometry as we know it today.

Brahmagupta's formula, also known as Brahmagupta's quadrilateral formula, is a mathematical formula used to calculate the area of a cyclic quadrilateral (a quadrilateral whose vertices lie on a circle).

Ancient Indian astronomers had a remarkable ability to predict solar eclipses, lunar eclipses, and meteor showers with great accuracy, demonstrating their advanced knowledge of celestial mechanics.

Ancient Indian astronomers used all three units of time: the hour, the minute, and the second, demonstrating their meticulous attention to detail and accuracy in timekeeping.

Ancient Indian astronomers correctly identified Mars as having an elliptical orbit, demonstrating their keen observational skills and understanding of planetary motion.

Ashwini is an ancient Indian constellation associated with the stars Beta and Gamma Arietis. It is one of the 27 nakshatras (lunar mansions) in Hindu astrology.

Ancient Indian astronomy had a significant impact on the development of astronomy in Southeast Asia, Central Asia, and Western Asia, contributing to the advancement of astronomical knowledge across these regions.

Aryabhata, in his seminal work Aryabhatiya, developed a method for calculating the circumference of the Earth using the angle of elevation of the Pole Star, demonstrating his ingenuity and mathematical prowess.

Ancient Indian astronomers were the first to observe and record Halley's Comet, with its earliest recorded sighting dating back to 240 BCE.

Ancient Indian astronomers believed that Saturn had the longest period of revolution around the Sun, reflecting their understanding of the relative orbital periods of the planets.

Ancient Indian astronomers correctly explained supernovae as the violent explosions of massive stars, demonstrating their understanding of stellar evolution and cataclysmic events.

Ancient Indian astronomy had a significant impact on the development of astronomy in Mesopotamia, Egypt, and Greece, contributing to the advancement of astronomical knowledge in these ancient civilizations.