Astrophotography · October 14, 2026
Active Sun in Hydrogen-alpha
- Target
- Sun
- Type
- Solar system
- Date
- October 14, 2026
- Telescope
- Coronado PST (40 mm Hα solar telescope) on a hypertuned Celestron AVX
- Camera
- ZWO ASI120MM (monochrome, false-colored)
- Filters
- Hα
A closer look at the chromosphere in hydrogen-alpha. A sunspot group sits inside a bright active region of plage, and a long dark filament (a ribbon of cooler plasma held up by magnetic fields) curves down across the disk below it. A second patch of plage lies near the lower limb. The camera is monochrome, so the orange color is added in processing.