An astronomical instrument is a device used to observe celestial objects, such as stars, planets, and galaxies. These instruments help astronomers gather data about the universe, enabling them to study the properties and behaviors of various celestial bodies. Common types of astronomical instruments include telescopes, which magnify distant objects, and spectrometers, which analyze the light emitted by these objects. Astronomical instruments have evolved significantly over time, from simple tools like the astrolabe to advanced technologies like space telescopes. These advancements allow scientists to explore deeper into space and gain a better understanding of phenomena such as black holes and supernovae.