Quote:
Originally Posted by Tulloch
Hi again, thanks for all the positive comments, appreciate the remarks.
Thanks Ralph, don't you notice rotation of the planets with such a long capture time? From what I've seen elsewhere online, the standard wisdom appears to be 3 minutes for Jupiter and 5 minutes for Saturn. Any longer than that and you have to start de-rotating the stacked frames in WinJupos (which I used to do when I was using my DSLR on the planets and only able to record at 20 fps).
Andrew
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To my mind 3 and 5 minutes are too long to capture without getting rotational smearing. Guess everyone is different. For Jupiter I use 90 sec captures and usually take 10 sets in run. Saturn normally is 120 seconds and 20 captures per run. Each capture is part processed and the the sets de-rotated in WinJupos. Once you get use to the measuring system in WinJupos it is pretty quick. About 10 minutes for 20 captures of Saturn.
If seeing changes during the session you can extend or stop and use part of the data collected. This image of Saturn was stopped short at 10 sets due to cloud.