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OCR: RedShift : Eguatorial View File Edit Display Controls Information Events Panels About Planets Dictionary 0 Astronomy OK Moone Contents Index Back Historu FIDS Deep Sk absorption line sharp dip ir intensity over narrow wavelength range in continuous spectrum spectrum Comets produced by typical spectrograph, in which the light passes Constells through narrow slit before being dispersed absorption lines have Grids the appearance of lines cutting across at right angles to the Horizon direction of dispersion. Markers Absorption lines are characteristic of the spectra of the majority ot stars In the case of the Sun, they are known as Fraunhofer lines. Atoms are able absorb radiation number of precise wavelengths The wavelengths at which absorption occurs are different for each chemical element m ...