CaK and CaH 11Dec2021 MiniSHG

[Merlin66]

Still working with filters - trying to find the Holy Grail to suppress the parasitic light.
Some interesting filaments visible with a couple of proms. Both in CaK and CaH.


I did an "inverted" CaK to better show the fluffy "flocculation clouds" visible in CaK.

I misread G E Hale's earlier description from 1929 when he said "....that a distinctive term should be adopted, and I now propose the name flocculi for the regions on the Sun's disk which are shown only on photographs made with the spectroheliography" and believed that these "clouds" were the flocculation he was talking about. He was actually referring to the brighter lines between these formations.....

Enjoy!

[Pete Presland]

Has a real 3d feel to that image!