Apr 282010

Hi,

finally some lunar imaging again. The night of April 23rd started with decent seeing at dusk with high frequency oscillation that made focussing tricky but an overall quite stable image. Unfortunately it worsened substantially during my imaging session but I managed to grab some AVIs. Seeing peaked during my Copernicus (again ;) ) capture, here the result:

Click image for full version with details

880 frames have been stacked in AVIStack, wavelet sharpening in Registax and postprocessing in PS. Although the moon was “only” 45° high in the skies this is my best Copernicus image so far. I wasn’t too sure about the optical quality of my C11 but the last weeks showed it’s potential – give me some very good seeing to bring it to the limits :)
I also imaged Plato and Pitatus during this session but the processing of those AVIs is very tricky. The high frequency of the oscillation combined with the prominent noise due to high gain settings in low contrast regions is fooling the alignment point tracking of all programs I tried so far. The lava floors of both craters are completely washed out in the results obtained so far. I tried Registax 5.1 today without success, currently AVIStack is crunching on the data with some alternative settings…

Cheers, Oliver