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
Sunday, May 15, 2022
Sunspot AR3007 in H-Alpha
Image of sunspot AR3007 in H-Alpha using SolarMaxIII 70/400 f/5.7 DS BF15 with ASI290MM.
Software: SharpCap Pro using seeing tool threshhold, AS3! (5%), IMPPG and CS4 (adding color R1.3; G0.44;B0.2; RGB1.8).
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