Hydrogen alpha scan from June 27, 2025. I was able to acquire 1 scan before a spec of dust worked its way onto the SHG slit. Still the scan is good enough to show the prominences on the western limb. #solorphotography #astrophotography #spectrohelioscope #astronomy #solex #MLAstro #solarastronomy

Hydrogen alpha solar scans from June 26, 2025. Taken in Champaign, Il. Doppler scan also included. See comments below for info about the solar structures visible in the photos.
#solorphotography #astrophotography #spectrohelioscope #astronomy #solex #MLAstro #solarastronomy