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Old 30-04-2013, 09:37 PM
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PRejto (Peter)
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Join Date: Jan 2011
Location: Rylstone, NSW, Australia
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Quote:
Originally Posted by g__day View Post
One thing I have found with guiding at long focal lengths is that folks often guide too aggressively and end up chasing the seeing.

One I have trained the PE on my scope I often watch the target star in say PHD to see if it moves around randomly much - at 2.3 metre focal length - that is seeing. If I see random movements I up the maximum drift before PHD will issue a correction and up the time between images to 3-5 seconds, else I will be totally chasing the seeing and trying to guide out random atmospheric disturbance!

I wish MaximDL or PHD had routines to measure and account for both seeing and DEC backlash with a lot more smarts!
Thanks Matthew!

I will follow your advice next opportunity re seeing. I think that may have been the root of my problem last time outside.

Peter
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