This monster active region is pretty large, but is also fairly quiet in terms of overall activity, infact the spot appears to be dying back a bit in this image taken with the 100mm telescope at 2000mm focal length with the DMK31 camera.
Images of the Sun, our local star, at a range of wavelengths with specialist solar telescopes. Imaging tutorials, solar bits and pieces for sale, talks and outreach with the Charlie Bates Solar Astronomy Project CBSAP.