SUN in Ca K 20012021

[Eris]

I set up this morning under a cloudless sky with intentions to observe in Ca K and Ha with the main feature being AR2797. Within the space of 10 minutes of observing the seeing went from fair to pear shaped. I did manage however to capture something before I was forced to pack it away. Unfortunately no Ha.

[Martin_S]

Good captures in spite of your viewing conditions Gerard, nothing but clouds here in Brisbane. The AR looks interesting.

Martin

[PeterM]

Super images Gerard, got to get em when you can! Here on the Gold Coast has been over a month of mostly cloud. Thanks for posting.

[John W]

Great captures Gerard. Thanks for posting. Cheers John W.

[Merlin66]

Gerard,
Very impressive results, well done!!

[Eris]

Thanks guys for your kind comments much appreciated. I'm finding AR2797 an intriguing feature. Is it a split cell, or is there an overlying feature that cuts across it? Suggestions?

[Merlin66]

Gerard,
The light bridge crossing the spot is a magnetic “filament” which usually is seen before the spot(s) break up.

[Eris]

Thanks for the explanation of what's going on Ken.