View single post by Robert | ||||||||||
Posted: Mon Mar 18th, 2019 13:01 |
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Robert
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Well the six hour window collapsed into two much shorter sessions. Nothing exciting materialised except I became slightly better at setting up! I have yet to analyse the images but the last set with my 16mm fisheye seems pretty reasonable. The main thrust if my efforts were to assess the improved alignment of the polar scope, I think it's much better but key to this will be a new solid and adjustable base mount to fit on the tripod and to mount the polar rotary tracker in very accurate alignment with the celestial North Pole. I have reached the drawings stage, I need to design the details of the adjustments and somehow devise some method of locking the adjustment robustly but without imposing great stress on the mount which will cause it to move out of alignment, the adjustment is extremely fine, accuracy needs to be in the region of 5 arc seconds or better, that means you can barely touch it because even a very heavy tripod will flex that much easily. It really needs bolting down, to something very solid. I do have ideas.
____________________ Robert. |
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