Fish-eye images
The following fish-eye images show the course of totality at the Shadow-tracking
expedition observing place at Klyuchi ionospheric observatory of Russian Academy
of Sciences near Novosibirsk in Russia. The images were taken by means of Canon
EOS 300D camera equipped with a 2.8/29 mm lens and a fish-eye adapter. The camera
was controlled by means of a home-made timer made by Pavel Štarha. Worth mentioning is the
difference of sunlight color between the first and the second image. The first image
was taken at the time when the crescent of photosphere was shining very strongly and
the photospheric light dominated. Whereas, the second image was taken at the moment when
the crescent of photosphere was so narrow that the red radiation of solar chromosphere
was prominent enough (in comparison to white photospheric light) to change the color
of solar radiation significantly. The same effect in reversed order can seen, but only
slightly, on the last pair of images. The reason for the effect not being so prominent
is that the penultimate image was taken too long after the third contact.
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Miloslav Druckmüller
Institute of Mathematics, Faculty of Mechanical Engineering
Brno University of Technology, Czech Republic
druckmuller@fme.vutbr.cz
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Page last update: 27.11.2019
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