18.4.22

18.04.2022 Solar imaging.

*

 Monday 18th Another sunny day. 

 Mid afternoon in "thermally" seeing. With thin, high cloud. The whole image is visibly shaking at a higher frequency. Over 30Hz?

 The AR2993/4 spots are moving away from the limb. Flares are reported. AR2994 is a double despite the separation to the third spot. [left lower umbra]

 15.27 16-bit capture.

 Early captures were much steadier and clearer than now. Probably a waste of time continuing under these seeing conditions. Stepped Noise Robust from 2 to 8 without any obvious difference. The sky around the sun is increasingly white with thin, high cloud. 

16.09 Normal and inverted.  The fine detail in the inverted image is remarkable.








 
 
 
 
 
 
 
 
 
 
 
*

No comments: