Sunday 18 August 2013

ar11818 16th august

ar11818 WL by Mark Townley
ar11818 WL, a photo by Mark Townley on Flickr.

This huge active region has been the star of the show over the past week on the sun, and in the process has thrown off a couple of M-class flares. The image was taken with the 100mm refractor, Lunt solar wedge, baader continuum filter and DMK31 camera.