Cory shot the 700 still frames that make up the video through a solar telescope and using a filter that allows you to see details of the sun's . (The chromosphere is the layer of the sun where , gigantic gas plumes which are related to , are most easily seen.)

The filter works by admitting only a very narrow spectrum of light which is characteristic of the chromosphere, close to just a single wavelength--the wavelength of light emitted by the sun's hydrogen atoms when their electrons go from their 2nd excited state to their 1st, a nice reddish color.

I still would have liked to have seen it, but this is a pretty nice consolation. Maybe next eclipse...

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