It was a clear if somewhat windy day for solar imaging. Today’s H-alpha image shows new prominence activity along the sun’s western limb and nothing much on the eastern limb. There are bright plages near all the major active areas (sunspots) as well as delicate filaments and darker blotches particularly in the sun’s northern hemisphere. I suspect that the blotches, were they on the solar limb, would appear as the explosive, solitary prominence visible along the sun’s SW limb.
Today’s annotated sunspot image shows eight major regions. The NASA image shows a couple more that are too faint to see in the image below.
Below, an over-exposed and over-processed image of the sun’s western limb prominences emphasizes the loop structures.
