Pascal Hilkens Astro Page
Personal blog to promote (solar) astronomy and other related sciences.
Pascal Hilkens Astro Home Page
Pascal Hilkens Astro Home Page
WHO AM I?
Usefull Links
Solargraphy
Helios Astronomy Club
Sunday, December 20, 2015
Solargraph
My pinhole camera's for solargraphs are ready to install!
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