Tuesday, 17 June 2014

CaK Full Disk 17th June

There was a nice collection of proms visible around the limb of the sun today in this mosaic taken with the 40mm scope at 700mm focal length with the DMK31 camera.  I took delivery today of specific ultra violet polarisers which I am hoping will help to reduce the brightening due to ghost reflections around the perimeter of the sun - ultimately I am hoping to get an image with a higher signal to noise ratio which should make the prominences easier to see on a blacker sky background, maybe with a higher contrast disk with maybe filaments that are easier to see?  I just need some clear skies now to test out the new filter setup and the theory!