The Sun in brutal seeing 20 January 2023

[Averton]

What was otherwise a very nice morning (calm, clear, sunny, not too hot, not too cold) was absolutely horrid for seeing. There was so much to view we spent a couple of hours imaging but the vast majority has gone to binary heaven.
Full disk image 540nm

2023-01-20 full disk 540nm named.jpg (680.52 KiB) Viewed 527 times

2023-01-20 full disk 540nm.jpg (670.1 KiB) Viewed 527 times

Full disk image 393nm

2023-01-20 full disk 393nm.jpg (837.15 KiB) Viewed 527 times

2023-01-20 full disk 393nm colourised.jpg (1.53 MiB) Viewed 527 times

Full disk image Ha

2023-01-20 full disk.jpg (1.85 MiB) Viewed 527 times

2023-01-20 full disk colourised.jpg (4.29 MiB) Viewed 527 times

The only Ha close up image vaguely worth keeping of AR3192 and AR3191

2023-01-20 AR3192 AR3191.jpg (1.12 MiB) Viewed 527 times

2023-01-20 AR3192 AR3191 colourised.jpg (2.58 MiB) Viewed 527 times

540nm closeups

2023-01-20 AR3192 AR3191 AR3195 540nm.jpg (1.2 MiB) Viewed 527 times

2023-01-20 AR3191 AR3195 AR3186 540nm.jpg (1.07 MiB) Viewed 527 times

2023-01-20 AR3190 AR3194 540nm.jpg (1.16 MiB) Viewed 527 times

2023-01-20 AR3194 AR3184 540nm.jpg (1.06 MiB) Viewed 527 times

[pupak]

Very nice colection.

[rigel123]

Gorgeous images! Lucky imaging wins out!

[Ibbo]

Very nice indeed.

[MAURITS]

A great session Clare & Peter, I like them all.

[DeepSolar64]

Clare and Peter,
You have the lucky imaging processing mastered to do so well in " brutal " seeing. Mine would be a fuzzy mess! I can see the light bridges in your images in the big spot of AR13190 that I picked up visually at 100x in the Orion70 today. Very nice work considering the conditions.

James

[ffellah]

Seeing may have been terrible but your images are excellent, Clare and Peter. Well done.

Franco

[rsfoto]

Hi,

Excellent serie of images ...

[Valery]

Very nice big series of images!

Thanks for sharing.

Valery

[Averton]

Thanks Pupak, Warren, Steve, Maurits, James, Franco, Rainer and Valery

Warren, it was most definitely a case of lucky imaging!

James, to get anything out of these conditions really required a lot of capture data and then selecting just the best.
The seeing at our location is average at best, so we do what we call lucky, lucky imaging and is why we don't do many time lapse videos as the seeing is never that consistent.
To get these images we took 6-8 videos for each image. Then batch stacked the 30 best frames from each of the 6-8 videos. Then we check the higher percentile quality figure in each of the as3 files looking for the image with the highest figure. We then batch sharpen the 6-8 images and visually check that the best figure matches the best image and delete the rest. In normal conditions we generally get 2-3 videos significantly better than the rest. Yesterday we only got 1, if we were lucky, for the images that we kept, the majority were just deleted ie there was no good video.

[MapleRidge]

Clare & Peter, the are great images despite the seeing...great to see you managed to get good results when finished

Brian

[DeepSolar64]

Clare & Peter,
You two are admirable. I myself almost always do my solar work alone. My wife has little interest in it and I bet most here are similar. Not many people seem to find a mate or partner with the same interests. Friends maybe but they are usually more apart than together.

James

[Peterm]

Well Clare and Peter you have taken advantage of the best of the conditions you had and tamed that brutality presenting us a fine set of images!

[marktownley]

Good shots Clare and Peter!

You will really sharpen up that disk with the Antila wedge by stopping the 102 down to about 50mm.

[Averton]

Clare & Peter, the are great images despite the seeing...great to see you managed to get good results when finished

Brian

Thanks Brian

[Averton]

Clare & Peter,
You two are admirable. I myself almost always do my solar work alone. My wife has little interest in it and I bet most here are similar. Not many people seem to find a mate or partner with the same interests. Friends maybe but they are usually more apart than together.

James

Thanks James. We count ourselves as most fortunate to be able to enjoy this activity together.

[Averton]

Well Clare and Peter you have taken advantage of the best of the conditions you had and tamed that brutality presenting us a fine set of images!

Thanks Peter

[Averton]

Good shots Clare and Peter!

You will really sharpen up that disk with the Antila wedge by stopping the 102 down to about 50mm.

Thanks Mark
Your suggestion is one of the many things we have on our list of experiments. We haven't made the aperture mask yet as we had been debating the size. Your 50mm suggestion will be the first we try - thanks!

[DeepSolar64]

I sooo want one of those Antlia CaK wedges. Christmas has me to broke to buy one and on top of that helping my dad out. Money is just too tight. :-( 1100 plus for a better performing Lunt module is out of the question right now. I have to save to move. It may be awhile before I get any new solar toys. :-(

[Montana]

Excellent images! I think that is the fattest filament I have ever seen

Alexandra

[Carbon60]

A very nice set of images, Clare and Peter, in challenging seeing conditions.

Stu,

[Averton]

Thanks Alexandra and Stu