The Sun in brutal seeing 20 January 2023
- Averton
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The Sun in brutal seeing 20 January 2023
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 Full disk image 393nm Full disk image Ha The only Ha close up image vaguely worth keeping of AR3192 and AR3191 540nm closeups
Full disk image 540nm Full disk image 393nm Full disk image Ha The only Ha close up image vaguely worth keeping of AR3192 and AR3191 540nm closeups
Clare & Peter
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Re: The Sun in brutal seeing 20 January 2023
Very nice colection.
I do not look at the sky with the eyes of an astronomer, but of a person looking for the beauty of nature.
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Re: The Sun in brutal seeing 20 January 2023
Gorgeous images! Lucky imaging wins out!
Warren
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Re: The Sun in brutal seeing 20 January 2023
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
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
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Re: The Sun in brutal seeing 20 January 2023
Seeing may have been terrible but your images are excellent, Clare and Peter. Well done.
Franco
Franco
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Re: The Sun in brutal seeing 20 January 2023
Hi,
Excellent serie of images ...
Excellent serie of images ...
regards Rainer
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Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
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Re: The Sun in brutal seeing 20 January 2023
Very nice big series of images!
Thanks for sharing.
Valery
Thanks for sharing.
Valery
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Re: The Sun in brutal seeing 20 January 2023
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.
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.
Clare & Peter
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Re: The Sun in brutal seeing 20 January 2023
Clare & Peter, the are great images despite the seeing...great to see you managed to get good results when finished
Brian
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Re: The Sun in brutal seeing 20 January 2023
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
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
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Re: The Sun in brutal seeing 20 January 2023
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!
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Re: The Sun in brutal seeing 20 January 2023
Good shots Clare and Peter!
You will really sharpen up that disk with the Antila wedge by stopping the 102 down to about 50mm.
You will really sharpen up that disk with the Antila wedge by stopping the 102 down to about 50mm.
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Re: The Sun in brutal seeing 20 January 2023
Thanks BrianMapleRidge wrote: ↑Sat Jan 21, 2023 1:17 am Clare & Peter, the are great images despite the seeing...great to see you managed to get good results when finished
Brian
Clare & Peter
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Re: The Sun in brutal seeing 20 January 2023
Thanks James. We count ourselves as most fortunate to be able to enjoy this activity together.DeepSolar64 wrote: ↑Sat Jan 21, 2023 1:19 am 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
Clare & Peter
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Re: The Sun in brutal seeing 20 January 2023
Thanks Markmarktownley wrote: ↑Sat Jan 21, 2023 6:25 am Good shots Clare and Peter!
You will really sharpen up that disk with the Antila wedge by stopping the 102 down to about 50mm.
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!
Clare & Peter
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Re: The Sun in brutal seeing 20 January 2023
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. :-(
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Re: The Sun in brutal seeing 20 January 2023
Excellent images! I think that is the fattest filament I have ever seen
Alexandra
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Re: The Sun in brutal seeing 20 January 2023
A very nice set of images, Clare and Peter, in challenging seeing conditions.
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