Total Eclipse
Taken by Comolli Sordini on August 21, 2017 @ Glendo WY
Click photo for larger image
  Camera Used: Canon Canon EOS 450D
Exposure Time: 1/30
Aperture: f/6.3
ISO: 400
Date Taken: 2017:08:24 17:55:35
  
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Details:
The flash spectrum taken with a 450D (modified full spectrum), 270mm lens, 100 lpm, 1/30s, 400 ISO. I've identified most of the lines in the visible range, but I've not found info above Halpha. Can anyone help? Image collaboration between Lorenzo Comolli and Emmanuele Sordini, processing Lorenzo Comolli
Photographer's website:
http://www.astrosurf.com/comolli/index2.htm
Comments
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If its a grating spectrum, then youre probably seeing the merging of different orders of dispersion. Google diffraction spectra orders for examples. beyond that, I cant say what they are.
Posted by ozalba 2017-08-25 23:41:59
Weve used a Star Analyser 100 placed in front of the lens. By looking inside the field, the second order spectrum was much farther out of field. I think the ? marked lines can be real.
Posted by loreastro 2017-08-26 10:41:12
 
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