Monday 19 March 2012

Ha Full Disk Colour - 19th March

Ha Full Disk Colour by Mark Townley
Ha Full Disk Colour, a photo by Mark Townley on Flickr.

One of the largest proms i've seen for a while visible today! For the second day running a delicate filaprom was visible on the suns south pole. The filaments in the west had lots of fine detail visible too.