The instrument used to view stars is the telescope. A telescope is a tool that gathers light and focuses it to create a magnified image of distant objects, such as stars, planets, and galaxies. It works by using a series of lenses or mirrors to capture and amplify light, allowing us to see objects that would otherwise be too dim or far away to be seen with the naked eye. Telescopes are essential tools for astronomers, who use them to study the properties and behavior of celestial objects, including stars.