Thursday, 7 August 2014
Sunspot Genesis at 393nm - 6th August
As the skies cleared late on wednesday afternoon I took a quick look on the GONG website to see if anything of note was happening on our star that would give me something to train my scope onto; as luck would have it a very bright patch just on the eastern limb corresponded to an emerging flux region. I was witnessing a sunspot directly in the process of formation. The small dark umbra and penumbra are just about visible here as they emerge amongst the plasma that was jetting out. Just hours before the region was completely blank. I took the shot with the 40mm scope at 925mm focal length with then homebrew CaK filter and the DMK31 camera.
Posted by Mark Townley at Thursday, August 07, 2014