Spectroscopy relates to the scattering of a protest's light into its segment hues (i.e. energies). By playing out this analyzation and examination of a question's light, stargazers can surmise the physical properties of that protest, (for example, temperature, mass, radiance and piece). Commonly one can watch two particular classes of spectra: ceaseless and discrete. For a consistent range, the light is made out of a wide, ceaseless scope of hues (energies). With discrete spectra, one sees just splendid or dull lines at extremely unmistakable and strongly characterized hues (energies). As we'll find in no time, discrete spectra with splendid lines are called emanation spectra, those with dim lines are named retention spectra.