The Sun in Hydrogen-alpha. This image showing plenty of surface activity was made in August 2012.
It shows filaments (thin wiggly dark lines), prominences (the filaments when seen from the side), plage (the lighter patches of substantial magnetic activity usually around sunspots) and finally granulation being the bubbles of hot gas breaking the surface.
It shows filaments (thin wiggly dark lines), prominences (the filaments when seen from the side), plage (the lighter patches of substantial magnetic activity usually around sunspots) and finally granulation being the bubbles of hot gas breaking the surface.
