August 25, 2022: Great prom in H-alpha

[michael.h.f.wilkinson]

The sun is showing a huge prom in the southern hemisphere, so I snapped a 10,000 frame SER file in H-alpha with the usual APM 80mm F/6, Beloptik Tri-Band ERF, Baader TZ-4 4x Tele-Centric, Solar Spectrum 0.3 Å H-alpha filter and ASI174MM. I stacked no less than 50% of the data in AS!3 (seeing decent in the red). Sharpened in ImPPG, curves and final tweaks in GIMP.

Part inverted:

Part inverted + pseudo colour:

Still working on the full disk and Wl and Ca-K

[bomberbaz]

That is beautiful, looks like a water fountain gently spraying before falling back. Nice work michael.