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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.
Last edited by Wavytone; 28-01-2018 at 12:40 AM.
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