Sun FD in H-Alpha and CaK 14th of September 2022

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arnedanielsen
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Sun FD in H-Alpha and CaK 14th of September 2022

Post by arnedanielsen »

Dear friends,

A short spell of blue allowed for a quick imaging session in the afternoon. I managed to get H-Alpha and CaK, but it clouded over before I was able to do Continuum. A very impressive prominence to be seen in H-Alpha and lots of active areas in CaK.

Click on images to view them in full size on AstroBin.

FD image in H-Alpha using a Coronado 60mm/BF15 w/Beloptik ITF, stopped down to 50mm, Baader 35nm H-Alpha and ASI 178mm mounted on a SkyWatcher SolarQuest.
Image

Image

Image


FD image in CaK using a FLO StellaMira 80mm ED f/10, stopped down to 60mm, Lunt CaK 1200 module and ASI 183mm camera mounted on a SkyWatcher SolarQuest.
Image

Image


Best regards,
Arne


Best regards,
Arne
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Re: Sun FD in H-Alpha and CaK 14th of September 2022

Post by Sumpy »

Super impressive as always, Arne! You really did that massive hook shaped prom justice - it looks great in your image!


Brian
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Re: Sun FD in H-Alpha and CaK 14th of September 2022

Post by marktownley »

Lovely disks Arne, thanks for sharing!


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Re: Sun FD in H-Alpha and CaK 14th of September 2022

Post by MAURITS »

Beautiful FD's Arne.


Regards,
Maurits

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Re: Sun FD in H-Alpha and CaK 14th of September 2022

Post by Carbon60 »

Impressive images, Arne. You’ve gone from strength to strength :)

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
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More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Sun FD in H-Alpha and CaK 14th of September 2022

Post by pupak »

Excelent pictures.


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: Sun FD in H-Alpha and CaK 14th of September 2022

Post by ffellah »

Love your images, Arne !

Franco


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Re: Sun FD in H-Alpha and CaK 14th of September 2022

Post by rigel123 »

Excellent disks Arne! Those CaK images are massive!


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Re: Sun FD in H-Alpha and CaK 14th of September 2022

Post by Montana »

Such a pleasure to enjoy on Astrobin. I was marveling at your first posted image. Do you do two separate prom and surface shot or modify the surface shot? Whichever way you do it I cannot notice the processing, it is very masterful and naturally done :bow :bow :hamster:

Alexandra


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Re: Sun FD in H-Alpha and CaK 14th of September 2022

Post by arnedanielsen »

Thank you so much everyone for all your kind comments!

Alexandra: I do a separate recording for the pure prom image with a longer exposure time to increase the s/n of the prominences. For the disc/prom the typical exposuretime with this setup is 3.5-4ms using neutral gamma. For the prom shots I use 12ms and a gain setting of 65 in FC.

Here you can see the stacked and sharpened versions before doing any contrast stretching.
2022-09-14-1407_8-AD-Ha(Coronado60mmBF15)-Sun60FD_Exposure=3.8ms_Gain=1_Gamma=65(off)_ZWO ASI178MM(53096324)_lapl4_ap3637_out.jpg
2022-09-14-1407_8-AD-Ha(Coronado60mmBF15)-Sun60FD_Exposure=3.8ms_Gain=1_Gamma=65(off)_ZWO ASI178MM(53096324)_lapl4_ap3637_out.jpg (1.48 MiB) Viewed 309 times
2022-09-14-1404_4-AD-Ha(Coronado60mmBF15)-Sun60FD_Exposure=12.0ms_Gain=1_Gamma=65_ZWO ASI178MM(53096324)_lapl4_ap260_out.jpg
2022-09-14-1404_4-AD-Ha(Coronado60mmBF15)-Sun60FD_Exposure=12.0ms_Gain=1_Gamma=65_ZWO ASI178MM(53096324)_lapl4_ap260_out.jpg (578.82 KiB) Viewed 309 times
Best regards,
Arne


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Re: Sun FD in H-Alpha and CaK 14th of September 2022

Post by Alun_H »

Fantastic images Arne.

Alun


Lunt 50THa solar scope
Lunt CaK B12 module
SW Evostar 72ED for full disk imaging
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Bresser 90 f/10 achromat used for CaK & white light imaging & PST mod with Lunt 100mm ERF
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Then there is all the night kit which is far too long a list to write up here! :lol:
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Re: Sun FD in H-Alpha and CaK 14th of September 2022

Post by MapleRidge »

Fabulous images Arne...well done :bow

Brian


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Re: Sun FD in H-Alpha and CaK 14th of September 2022

Post by marktownley »

Your Ha etalon is one of the best Arne ;)


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Re: Sun FD in H-Alpha and CaK 14th of September 2022

Post by arnedanielsen »

Thank you very much Alun, Brian and Mark!

Mark: I'm very happy with the performance of this setup.

Best regards,
Arne


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Re: Sun FD in H-Alpha and CaK 14th of September 2022

Post by arnedanielsen »

Many thanks!

Best regards,
Arne


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