Spectrometers are used in astronomy to analyze the chemical composition of stars and planets, and spectrometers gather data on the origin of the universe. A spectrometer (/ spɛkˈtrɒmɪtər /) is a scientific instrument used to separate and measure spectral components of a physical phenomenon. Specifically, a UV-Visible Spectrometer measures the absorption or transmission of light in the ultraviolet (UV) and visible (Vis) regions of the electromagnetic. Spectrometers are essential tools in various scientific and industrial fields, enabling precise measurements of light and other electromagnetic radiation.