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Laboratory Swan Bands


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About this observation
Bill W
Time of observation
12/05/2010 - 21:23
Swan Bands
Home made spectroscope
Butane torch
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A bit of laboratory astrophysics. Much is said of the Swan Bands in cometary spectra. These are emissions from C2. Not having a ready made comet to experiment with. it occured to me I might have a suitable analogue!

Pointing my home made Littrow spectroscope at the flame of a propane torch used for plumbing I recorded this spectra of  the C2 emissions in the flame. Pretty much the same as a comet, just a bit hotter.. ;-)

The only real difference is the yellow line (sodium) coming from somewhere as it's not a C emission.

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