Peter's Chem Blog
References
http://www.umop.net/spctelem.htm
http://www.astronoo.com/en/stars.html
http://skyserver.sdss.org/dr1/en/proj/advanced/spectraltypes/lines.asp
http://earthsky.org/
http://www.astro.wisc.edu/~dolan/constellations/extra/brightest.html
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