Astronomical databases are organized collections of data related to celestial objects and phenomena. They store information about stars, galaxies, planets, and other astronomical entities, allowing researchers to access and analyze vast amounts of data efficiently. These databases often include details such as positions, brightness, and spectral information, which are crucial for studying the universe. Many astronomical databases are publicly accessible and support various research projects. Examples include the Sloan Digital Sky Survey and the NASA/IPAC Extragalactic Database. These resources enable scientists to collaborate, share findings, and enhance our understanding of the cosmos.