By Ross Stone | 2026-07-20
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Filtered solar image
On 07/22/2026 10:30 am by David Hoskin | Halifax, Nova Scotia, Canada
Large Earth-facing sunspot AR4493 harbours energy for the possible release of X-class solar flares.
Celestron f/5 150mm reflector, solar filter, ASI533MC camera and SkyWatcher EQ6R mount.
Best 200 of 2000 frames stacked with AstroSurface, post-processing with Registax, Photoshop, and MS Photo. False color added using Photoshop.
