A week ago... 3 AR in a row

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A week ago... 3 AR in a row

Post by LeoD »

Hi
the Sun became quiet last few days and only this weekend I have time to process images on March 25 and 27 after a very busy week.
I made a mosaic of the last 3 AR's: 12812, 12811 12810 caught on 27/03, small proms and filaments, all with 130mm+Quark, FD with the Lunt CaK, downed to 100mm.
regards
Leo
Attachments
mosaic 3 AR 27/03
mosaic 3 AR 27/03
Sun_20210327 134850_4f_AId_cOPs.jpg (2.73 MiB) Viewed 180 times
SE limb 27/03
SE limb 27/03
Sun_20210327 141041_cOPs.jpg (1.65 MiB) Viewed 180 times
FD CaK 27/03
FD CaK 27/03
Sun_20210327 132101_AIwPs2 c.jpg (1.32 MiB) Viewed 180 times


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Re: A week ago... 3 AR in a row

Post by LeoD »

add on
Development of AR12812 and AR12811 from 25/03 to 27/03
Attachments
25/03
25/03
Sun_20210325 164540_AIdPs2.jpg (929.2 KiB) Viewed 168 times
27/03
27/03
Sun_20210327 140937_AIdPs4.jpg (879.34 KiB) Viewed 168 times


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Re: A week ago... 3 AR in a row

Post by christian viladrich »

This is quite good. Well done !!


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Re: A week ago... 3 AR in a row

Post by marktownley »

very nice Leo! Good stuff!


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Re: A week ago... 3 AR in a row

Post by Simon2940 »

[bad-word] these are clean as a whistle!


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Re: A week ago... 3 AR in a row

Post by LeoD »

Christian, I really appreciate your comment!
Mark, Simon, thanks you like it!

Leo


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Re: A week ago... 3 AR in a row

Post by EGRAY_OBSERVATORY »

Really fab images Leo

Thanks for sharing
Terry


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Re: A week ago... 3 AR in a row

Post by ffellah »

Very impressive images, Leo ! Detail is amazing...the seeing must have been very good.

Franco


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Re: A week ago... 3 AR in a row

Post by JochenM »

Great stuff, Leo.


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Re: A week ago... 3 AR in a row

Post by p_zetner »

Beautiful shots, Leo.
Cheers.
Peter


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Re: A week ago... 3 AR in a row

Post by MAURITS »

Beautiful images Leo.


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Re: A week ago... 3 AR in a row

Post by LeoD »

Thank you all so much for looking!

Franco, although meteoblue gave 1.6" at 2pm, but I didn't beleive, my SSM only sometimes showed less than 2" between clouds.
Maybe there is another trusty source for a seeing forecast.
My setup 130f7+Quark+174mm is about critical sampling, thus very sensitive to the seeing. I tried to take maximum from the given conditions and was a bit lucky. But definitely wasn't a day for Ca, turbulence killed all closeups.

Leo
Attachments
seeing 27/03
seeing 27/03
PSX_20210405_221957.jpg (101.6 KiB) Viewed 92 times


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Re: A week ago... 3 AR in a row

Post by Stardust5858 »

Lovely captures, doesn't matter if it's from a week ago. Better late than never as they say. Thanks for sharing.


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Re: A week ago... 3 AR in a row

Post by ffellah »

Thank you, Leo for the seeing explanation. The more I look at the first Ha and the last two, the more I think they are pretty stunning. You also have excellent processing there, as the fine details really stand out. I would like to know more about your 130mm scope and the Quark you used. Is it a regular Quark chromosphere ? It looks very narrow.

Franco


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Re: A week ago... 3 AR in a row

Post by Carbon60 »

Very fine images, Leo. Beautifully done.

Stu.


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Re: A week ago... 3 AR in a row

Post by Montana »

Wow!! these are gorgeous :bow :hamster: I wish I had your seeing :)

Alexandra


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Re: A week ago... 3 AR in a row

Post by LeoD »

Thanks for kind words!
ffellah wrote: Tue Apr 06, 2021 12:36 am Thank you, Leo for the seeing explanation. The more I look at the first Ha and the last two, the more I think they are pretty stunning. You also have excellent processing there, as the fine details really stand out. I would like to know more about your 130mm scope and the Quark you used. Is it a regular Quark chromosphere ? It looks very narrow.

Franco
Hi Franco, I don't think I'm original in processing: AS3 stacking, AstraImage deconvolution, PS with Nik plugins for final adjustments. I don't like to combine 2 exposures of proms and chromosphere, trying to work out a single frame. To find the best stack from imaging session with more difficult prom+limb+chromosphere scenes I apply Photomatix presets to sharpened AS3 stacks. You can see better where is less stacking artifacts, more crisp proms, spicules on the limb and optimal dynamisc range to select for further processing, with or without HDR and tone mapping.
My scope is TS-Optics PHOTOLINE 130 mm f/7 FPL53 Triplet APO with quite good 2.5" R&P focuser from teleskop-express.de. They didn't provided me with the lens diagram so I don't know how it's corrected at 393nm. Sure it's not similar to TOA, but I beleive an triplet objective should be acceptable for Ca. The Quark Chromo version I simply ordered from Daystar. Yes, it looks narrow, but with significant non-uniformities fortunately at sides of FOV. I pretty much got rid of it by camera rotation.
sorry if this is too brief, your're welcome to go in details
regards

Leo


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Re: A week ago... 3 AR in a row

Post by AJamesB »

Great detail, especially in that first image!


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