Pascal Hilkens Astro Page
Personal blog to promote (solar) astronomy and other related sciences.
Pascal Hilkens Astro Home Page
Pascal Hilkens Astro Home Page
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Solargraphy
Helios Astronomy Club
Tuesday, August 19, 2025
Helium D3 line
Imaging the Sun in the Helium D3 line (HeID3). For details see picture.
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