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In this huge guide I teach you how to understand, observe, photograph and paint optical phenomena of the sky! It covers the ordinary rainbow, a few special types of rainbows and the most common halos.
All pictures used in this guide are speedpaintings I made as I went along creating the individual pages.
Warning: You will never look at the sky with the same eyes again
Here is the link to wolframalpha
I talk about on page 7, so you can find out how the sun moves at your location.