Active Sunspot Region

In the lower right, plasma is being shot out of a sunspot and is getting pulled back by the suns magnetic field creating a coronal loop. These can last seconds to days and range from hundreds to hundreds of thousands of kilometers above the surface.

This timelapse was created from images taken over the span of a few hours using a Lunt hydrogen alpha solar telescope and ZWO planetary camera. Do not look at the sun or point a camera at it without an appropriate solar filter, it will cause instant and permanent damage.