28.1.22

28.01.2022 Imaging in poor seeing conditions.

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Friday 28th 35F, clear skies! Early crescent moon low in the south. 

10.30 35F Optics dewed. Heat bands and hair drier making slow progress. 

11.38 [CET] 38F in the dome. Dew on objective  finally clear. Changed to 1.6x GPC to cope with the highly mobile seeing conditions. Rapid thermal shaking and soft focus. First [very poor] image. 

12.00 40F. Speckled, high cloud softening the image.



12.12 Still cloud around the sun.           


 

 

14.48 44F After lunch. No real improvement in seeing conditions. Sun now over the house. Cloud still present.

The image seems to be taking on a coarse, grainy appearance. Almost like my earlier ZWO ASI 120MC-S. That camera became unusable!

 

 

 

15.10 Changed to 2x GPC and removed the internal protection filters. Baader 35nm H-a and Beloptic KG3. With the sun so low and partially hidden by cloud its energy is much reduced. The Baader D-ERF can manage energy rejection on its own. A definite improvement.

15.25 The cloud is thicker than ever. 

 

There is  storm coming tomorrow. 29m/s or 65mph gusts are possible. I have turned the shutters into the wind to reduce any chance of lift. The telescopes are horizontal and under the polar axis. 

 

 

 

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