Monday, 14 March 2011

Ha Full Disk 13th march 2011

Full Disk Ha lrg, originally uploaded by Mark Townley.

This shot was taken with the double stacked 40mm Coronado etalon mounted on a 420mm fl scope, used with a barlow nosepiece to give an focal ratio of about f16. The camera was the PL130M, and while this is quite a quirky imaging device I think i'm slowly getting the hang of it. This is a 'one shot' exposed to show the disk features and the prominences around the limb simultaneously. Unfortunately there weren't any large proms, however the overall image was quite interesting.