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Old 28-01-2020, 04:43 PM
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Tulloch (Andrew)
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Join Date: Sep 2019
Location: Melbourne
Posts: 488
Quote:
Originally Posted by Solar View Post
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.
Nice one Ralph, what sized aperture scope was this taken with?

I got my timings from Darryl (aka Kokatha Man) who normally frequents Cloudy Nights, his images of the planets are amongst the best I've seen from an earth based telescope (although your Saturn is right up there ). He uses a 14" SCT and his website is here .

I guess that whatever works for you the correct answer on how long to capture for, there's no doubt that your result is first rate. Could you share a little more on your capture technique, eg camera used, scope etc?

I took about 5x5 minute captures of Saturn on the night I took this one, so I guess I could go back and re-process all of these videos, de-rotate them in WJ and see what difference there is. I could also split each of them up into 10 x 150 sec videos and do the same thing .

It's probably worth doing just as practice for next season, I thought my WJ days were past me, but if there's extra detail to be had ...

Thanks again, Andrew
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