Consulta estas páxinas para construir o espectrográfo:
http://www.cs.cmu.edu/~zhuxj/astro/html/spectrometer.html
http://sci-toys.com/scitoys/scitoys/light/cd_spectroscope/spectroscope.html

http://www.livescience.com/41548-spectroscopy-science-fair-project.html
http://www.euhou.net/index.php/exercises-mainmenu-13/classroom-experiments-and-activities-mainmenu-186/178-a-home-made-spectroscope
http://coolcosmos.ipac.caltech.edu/cosmic_games/spectra/makeGrating.htm
https://www.youtube.com/watch?v=YStZk2zANvk
http://www.euhou.net/index.
http://coolcosmos.ipac.
https://www.youtube.com/watch?
Para entender o espectro electromagnético e os espectros atómicos: