A Star Projector is a device designed to project images of stars and celestial bodies onto walls and ceilings. It typically uses LED lights and lenses to create a realistic night sky effect, allowing users to enjoy a starry atmosphere indoors. Many models also feature different color options and patterns, enhancing the visual experience. These projectors are popular for creating a calming environment in bedrooms, nurseries, or home theaters. Some advanced versions may include features like timers, sound effects, or Bluetooth connectivity, enabling users to play music while enjoying the starry display.