Quote:
Originally Posted by Wavytone
Joe a 3"-4" refractor are fun, I agree, and there certainly is some merit in using smallish refractors upto say 130mm / 5" which are definitely more immune to poor seeing than say a C8.
But this scope is something else, as it its quite capable of 450X if the seeing permits and I have realised that if you choose a site where the surface airflow above the scope is laminar, you can expect good seeing quite often. Basically what this means is that you need to be on or close to (within 200m) of a ridge facing into the prevailing wind. Shipley Plateau is looking very attractive for retirement.
Cant anything about the jetstream, though.
I'm making a list of doubles in the range 4 to 0.5 arcsec to try in autumn, assuming the weather picks up in March.
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Anything's better than the atrocious seeing lately in Sydney...and the clouds!
Yes I also am making a list and checking it twice..as Santa is want to do.
Already finding its true...the smaller refractor handles seeing better than big central obstructions of an SCT .
Indeed a good Maksutov has a small , almost negligible one ..and so performs like a big refractor once cooled...with outstanding resolution taking up to 90x per inch of aperture...Esp the famous Russian ones that are difficult to come buy or very expensive , and soo very coveted.
bigjoe.