Visibility IV / V
A rather windy day made me wonder if the description will be equal to anything. I took the risk, and luckily it was worth all the effort then. Our near-star with three different wavelengths, dubbed the "trifecta" among sun enthusiasts. Full disk image of the sun at the wavelength of calcium II K-light, visible light (solar continuum) and hydrogen alpha. Each of these opens up its own views on the awakening of the activity of the sun from the quiet life of the dormant years towards a tumultuous maximum.