31.8.22

31.08.2022 Afternoon Imaging AR3089

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 Wednesday 31st 65F Sunny periods with lots of cloud. 

16.06 [CET] shaky and soft seeing again. Large clouds quickly ended initial captures.

 I increased the gain to exaggerate brightness imbalance across the frame. Then lifted the entire filter stack with a cord. Finally returning for an even balance. However, the presence of Ellerman bombs suggest a shift from H-a into the blue. Though a search suggest they are hotspots.

Gain 118, 7ms, 88fps, 50/1000 stacked. 

 Following captures suffered from severe, thermal boiling of the image. Could it be the margins of clouds causing thermals? 

 The largest spot on the west of the group has a delicate, arching, light bridge.

16.30 A steadier moment? Intermediate captures were very soft.

 I am now sorting poorer captures upon opening in AS!3. If the initial image shows softness there is no point in continuing to stacking. Some detail should be visible in the opening image. 

 If the stacked image in AS!3 still shows little detail. Then it is not usually worth opening in ImPPG.



16.51 A retuning has altered the brightness gradient across the frame. Brighter at top right. AS!3 has cropped the image.


 

Taking a break to see if the seeing improves later.

 

 

 


17.31 Another retuning and refocusing. 

The image looks coarser. Still a diagonal imbalance.


 

 

 

 

 

 

 

18.16 A late capture just before the trees eclipsed the sun.

 

 

 

 

 

 

 

 

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