Brahmagupta's instruments were primarily designed for observing the positions of stars and planets in the sky.

Brahmagupta invented the armillary sphere, a spherical model of the universe that was used to demonstrate the motions of celestial bodies.

The armillary sphere is a valuable tool for astronomers because it allows them to observe the positions of stars and planets in the sky.

Brahmagupta used the quadrant, a quarter-circle instrument, to measure the altitude of celestial bodies above the horizon.

The quadrant operates on the principle of right triangles, allowing astronomers to calculate angles between celestial bodies and the horizon.

Brahmagupta used the sundial, a device that measures time based on the position of the Sun, to determine the time of day.

The sundial operates on the principle of shadows, with the position of the Sun's shadow indicating the time of day.

Brahmagupta used the armillary sphere, with its movable parts representing celestial bodies, to predict eclipses.

Brahmagupta's instruments played a crucial role in advancing astronomy by enabling more accurate observations, facilitating the development of new theories, and aiding in the creation of more precise calendars.

Brahmagupta's instruments had a profound impact on subsequent generations of astronomers, inspiring them to make further advancements, providing a foundation for new developments, and influencing the work of astronomers worldwide.

Brahmagupta's work influenced not only Indian astronomers like Aryabhata and Bhaskara II but also astronomers from other cultures, including Al-Khwarizmi and Nicolaus Copernicus.

Brahmagupta's instruments played a significant role in the development of modern astronomy by laying the groundwork for advanced instruments, providing insights into celestial motions, and aiding in the refinement of timekeeping and calendar systems.

Astronomers today face challenges in using Brahmagupta's instruments due to their complexity, the specialized knowledge required to operate them, and their limited accuracy compared to modern instruments.

Astronomers still use Brahmagupta's instruments for various reasons, including gaining historical insights, appreciating ancient ingenuity, and conducting educational experiments and demonstrations.

Preserving Brahmagupta's instruments and the associated knowledge requires a multifaceted approach, including establishing museums, conducting research, publishing articles, and incorporating their study into education programs.