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Peter Zetner | all galleries >> Astrophotography >> Solar Photos (pre-2014) >> Spectroheliograph > Montage_spectrohelio0008_6px_sized_refine.jpg
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25-AUG-2013

Montage_spectrohelio0008_6px_sized_refine.jpg

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Date/Time25-Aug-2013 19:53:03
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Peter Zetner26-Aug-2013 18:03
I've analyzed the August 25th images a bit more and produced better versions. Instead of uploading them individually, I put them together in an animation.

http://s1303.photobucket.com/user/p_zetner/media/Album%201/Montage_proc_series_resize_zps6c0e831b.mp4.html

This "Spectral Animation" is a sequence of 10 frames taken at different spectral locations within the CaK absorption band. The 1st frame is taken at approx 0.28 angstroms blue of line centre (3933.71). For each successive frame, a step in wavelength of approx 0.14 angstroms is introduced. You can see the dramatic increase in contrast near line centre.
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