Star Tracker

A star tracker is a device used in spacecraft to determine the vehicle's precise orientation in space by automatically identifying star patterns. It captures images of the night sky, compares the observed star positions with an internal catalog, and calculates the spacecraft's attitude. This process helps the spacecraft know exactly which way it's pointing, ensuring accurate navigation and operation of onboard systems. Star trackers are highly accurate and reliable, making them essential for space missions that require precise orientation, such as satellite stabilization, scientific observations, and planetary exploration.