Saturday, April 22, 2017

2016 SOLAR ANALEMMA (AND A HALF) OVER THE OUTER HEBRIDES Taken by Giuseppe Petricca on January 1, 2017 @ Stornoway, Eilean Siar, Scotland

In the composition (a six shot panoramic for the background and 56 different solar pictures) we can clearly see two solar analemma pictured respectively in the early and middle morning. The immediate thought goes to the morning figure (the one on the left) which is complete only for the upper summer half, as a proof of the long dark nights here in the upper latitudes.

An experiment that I wanted to try, and that I can surely say has been a success, even if the doubling of everything to capture the two figures is a workload to consider. And the weather surely made all this year long adventure like a lottery win in the end!

This strange figure, with a shape of an 8 or an infinite, the analemma, is caused by the axial tilt of our planet, and by the elliptical shape of our orbit around the Sun. If we take a picture day by day, always at the same hour, the Sun is not in a fixed position, but it slowly climbs up and then down the curve.

Canon EOS 700D - 18 mm - 6 Shot Panorama Background - 56 Solar Pictures - Lightroom CC - Photoshop CC

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