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Sky Watcher Equinox Pro 100mm OTA, AZ-EG6GT mount, Daystar Quarks Hydrogen Alpha/Calcium H/Sodium filters
Multi-wavelength image of sunspot from 2/6/2021. I have never seen an image like this published before - includes hydrogen alpha mapped to red, sodium to orange, calcium H line to blue. Take using Daystar Quark filters on relevant spectral lines.