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18.06 [CET] 2.6x GPC. Thermal shaking of the image. Clavius
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I have left the Baader D-ERF in place. It seems to sharpen the image. Removing it caused image softness.
18.17 Removed GPC and fitted 2x Shorty Barlow.
Plato
18.55 Ptolemy
19.00 Pause for dinner
20.03 Back again. Seeing conditions more steady. 16 bit mono SER.
Plato shows 3 craterlets.
20.13 16 bit mono SER.
20.23
20.31 Ptolemy
20.38 Plato 3 craterlets. Better lighting on the mountains. Hint of the rill in Vallis Alpes.
20.50 The moon is about 60° altitude.
20.59 Clavius
21.09 Last try at Plato.
The seeing is steadier than earlier but shows hints of defocusing. The telescope is about to collide with the monitor. I could do a meridian flip but think I have enough images to be reasonably satisfied for this session.
Back indoors at 10.00 29.5F. This morning's snow is still lying on the lawn. I wore my thickest down jacket and salopettes. Both items were found in charity shops.
This lunar imaging session makes me want to resurrect the 10" f/8 and the 7" f/12 refractor.
The 10" will eclipse both refractors by a wide margin. I bought some oversized alloy tubing from the scrap yard to make a really stiff, truss or skeleton tube for the 10". No more messing about with beam OTAs!
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