Saturday 11 February 2012

Ha Sun - 11th February

full disk colour 1 by Mark Townley
full disk colour 1, a photo by Mark Townley on Flickr.

Only a very brief window to grab some sun this morning, however glad I did! The suns disk is pretty quiet apart from huge active region 1416 dominating mid disk. Even the filaments today are relatively quiet. Prom action was plenty if small in scale.

Attention to detail in getting flats is paying dividends now, and this image was post processed solely in CS4 using Iterative Unsharp Mask (I-USM). I need to refine the technique a bit more yet, but it has a distinct advantage over registax wavelets in so much as doesn't produce a halo effect on high contrast features.

The good news is that the sun is now much higher in the sky, and next time I get to image my 'viewing window' will have extended to about 3 hours - the sun is well clear of the rooftops and trees. The benefit of this extra time will translate into multi wavelength imaging at a variety of focal lengths!