14.09.2021 Afternoon imaging.

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 Tuesday14th 63F, overcast  morning cleared mid-afternoon.

Examination of the dome indicated that the outer shutter ribs are curving inwards at their centers. This may be what is causing the ribs to slope. I shall slacken the bracket nuts and try to straighten out the ribs. One of the unique advantages of having adjustment slots.

 Imaging: 

15.30 AR2866&8 on the limb. Seeing conditions awful. Heavy thermal shaking.

16.40 My first image with any detail. The brightness variation suggests off-band tuning and PST etalon sweet spot problems.  

16.54 The western limb.

16.48 NW limb.  Seeing becoming more steady and transparency improving.

 

 

 

 

 

 

 

 17.25 Cloud streaming across the sun. It looks like the trees have been cheated of their eclipse value.

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