Sunday 16 June 2013

Ha Full Disk 16th June

ha full disk DS40 by Mark Townley
ha full disk DS40, a photo by Mark Townley on Flickr.

Taken with the Coronado DS40 scope at f20 this 6 pane mosaic shows just how much was happening on our star today. The bright plage on the eastern limb surrounds numerous new active regions, However the proms were the feature that really stood out today, in particular the long needle prom in the southern hemisphere.