DavidTrap
07-10-2013, 04:08 PM
A fantastic weekend at Leyburn (thanks again for your hospitality Mark & Deb).
This was a sequence of ~800 30 second images (f2.8, ISO 800), stacked using StarStaX (for Mac).
I tried one the night before at ISO 1600. The stacking program uses a lighten blending mode, so the image gets progressively brighter as it adds successive images. At ISO 1600 it was far too bright when trying to include all the images, hence why I reshot this sequence at ISO 800.
When I recover from 3 nights imaging, I'll have a crack at processing my data on NGC253. Amazing weather in SEQ for the long weekend. The seeing last night was very good - Dave's AO unit was almost redundant!
Comments & criticisms welcome as usual. Any suggestions for removing the plane trails would be appreciated - I was thinking of finding the offending subs and drawing a black line over the trail in PS???
DT
This was a sequence of ~800 30 second images (f2.8, ISO 800), stacked using StarStaX (for Mac).
I tried one the night before at ISO 1600. The stacking program uses a lighten blending mode, so the image gets progressively brighter as it adds successive images. At ISO 1600 it was far too bright when trying to include all the images, hence why I reshot this sequence at ISO 800.
When I recover from 3 nights imaging, I'll have a crack at processing my data on NGC253. Amazing weather in SEQ for the long weekend. The seeing last night was very good - Dave's AO unit was almost redundant!
Comments & criticisms welcome as usual. Any suggestions for removing the plane trails would be appreciated - I was thinking of finding the offending subs and drawing a black line over the trail in PS???
DT