Guest ollypenrice Posted January 11, 2015 Share Posted January 11, 2015 (edited) Not a serious go because the cameras are in the middle of another project and I didn't want to rotate them, but this is 12 x 1 minute per colour stacked on the comet and de-starred. Intriguing structure in the tail, though. Even for my indifferent eyes it was just about naked eye. Best wishes, Olly Edited January 11, 2015 by ollypenrice Link to comment Share on other sites More sharing options...
+RonC Posted January 11, 2015 Share Posted January 11, 2015 Awesome as usual Olly!! Link to comment Share on other sites More sharing options...
Guest StevenWhatley Posted January 11, 2015 Share Posted January 11, 2015 Fantastic Olly! Link to comment Share on other sites More sharing options...
BAZ Posted January 11, 2015 Share Posted January 11, 2015 Very nice tail the Olly. Link to comment Share on other sites More sharing options...
Johnnyaardvark Posted January 11, 2015 Share Posted January 11, 2015 Nice and clean image Olly. Link to comment Share on other sites More sharing options...
Guest ollypenrice Posted January 11, 2015 Share Posted January 11, 2015 You're very kind but this isn't my kind of imaging and I don't know what I'm doing, really. 3 minutes separated each colour sub from the next one in the series. The 'jump' after three minutes was huge, which means that the amount of movement during a one minute exposure was also huge. So in reality the sharply defined tails would be far more sharply defined if we had the right technology. Had all been well last night I'd have had twice as much data but one of the cameras chose to act the goat on the dual rig, preventing us from getting double data. It was easy to fix in daylight, as ever. What I'd suggest for anyone doing comets (not that I did this myself!!) is take lots of short subs, stack them on the comet, process out the streaked stars and (read this twice!) record the RA and Dec of the location. Once the comet has cleared off you can reshoot the same (cometless) starfield, process it and then apply the starless comet in Photoshop under Blend Mode Lighten as a top layer. Why didn't I think of that? Olly Link to comment Share on other sites More sharing options...
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