Thanks Dave. With only 6" aperture we are light starved for Neptune so the best we can manage is 2FPS, 500ms exp with gain of 390. This was 12 minutes of video with the best 10% stacked. With the gain so high we decided to take dark frames which we used with AS!3 when stacking. There is very little sharpening in Registax. This is the Registax info WSL1_0_WV10_10_10_10_10_73. We used GIMP to increase Triton's exposure level.
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