Spectroscopy

• How Does Diffraction-Grating Spectrometry Work?
  Learn how a diffraction grating separates light by wavelength and how to calculate a spectral line’s wavelength from its order and angle.
• How Do Astronomers Identify Elements in a Blended Emission Spectrum?
  Astronomers identify elements in a blended emission spectrum by matching calibrated line wavelengths to atomic data and checking shifts, blends, and line strengths.