astrometric accuracy

Astrometric accuracy refers to the precision with which astronomers can measure the positions and movements of celestial objects, such as stars and planets. This accuracy is crucial for understanding the universe's structure and dynamics. High astrometric accuracy allows scientists to track how objects move over time, map the Milky Way, and even detect exoplanets. It relies on advanced telescopes and sophisticated techniques, enabling astronomers to distinguish tiny shifts in position, often smaller than a fraction of a millimeter, as seen from Earth. This level of detail enhances our knowledge of cosmic phenomena and supports various astronomical research.