A spectrograph is an instrument used to analyze the light spectrum emitted, absorbed, or scattered by materials. It separates light into its component wavelengths (or colors) and records these wavelengths to produce a spectrum, which provides valuable information about the physical properties and composition of the light source being studied. Spectrographs are widely used in various fields, including: 1. **Astronomy**: To study the composition, temperature, density, and motion of celestial objects by analyzing their emitted or absorbed light.
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