Ca K images taken on May 30 with the TOA150

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christian viladrich
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Ca K images taken on May 30 with the TOA150

Post by christian viladrich » Mon Jun 29, 2020 3:46 pm

I have been busy with my job and other stuff, so here are some old images taken on May 30. Nothing fancy, only a very small spot visible next to the solar limb :

Image

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Image


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Re: Ca K images taken on May 30 with the TOA150

Post by EGRAY-OBSERVATORY » Mon Jun 29, 2020 4:28 pm

Nice captures Christians.
Thanks for taking the time off work.

Regards
Terry



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Re: Ca K images taken on May 30 with the TOA150

Post by marktownley » Mon Jun 29, 2020 4:38 pm

These are excellent Christian. The Alluxa seems to be working well. Out of interest what other refractors have you had success with in imaging in CaK?


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Re: Ca K images taken on May 30 with the TOA150

Post by christian viladrich » Mon Jun 29, 2020 6:00 pm

Thanks Terry and Mark !
Mark, I started Ca K imaging a long time ago with a Vixen Fluorite 55 mm F/8 refractor. It was OK. Still, I found out lately that the AR coating vastly reduces its transmission in Ca K.
Then, I used a Takahashi FSQ 106 (the old version). I had to stop it down to 80 mm. It was OK for one-shot full disk images.
Then, the TOA 150 which is flawless for Ca K.


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Re: Ca K images taken on May 30 with the TOA150

Post by JochenM » Mon Jun 29, 2020 6:08 pm

Excellent results there, Christian.

Top notch setup as well!



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Re: Ca K images taken on May 30 with the TOA150

Post by p_zetner » Mon Jun 29, 2020 6:25 pm

Beautiful CaK shots, Christian.
The Tak / Alluxa combination gives superb results.
Cheers.
Peter



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Re: Ca K images taken on May 30 with the TOA150

Post by LeoD » Mon Jun 29, 2020 8:27 pm

Outstanding, top images, Christian!
very well detailed cell structure in Ca and it looks noiseless. Is it 0 gain with 1ms on 290 camera?
regards
Leo



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Re: Ca K images taken on May 30 with the TOA150

Post by Montana » Tue Jun 30, 2020 10:27 am

Truly superb imaging Christian, the beautiful filigree is an absolute delight :bow :bow :bow

Alexandra



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Re: Ca K images taken on May 30 with the TOA150

Post by christian viladrich » Thu Jul 02, 2020 3:15 pm

Thanks Jochen, Peter, Leo and Alexandra !
Leo, yes the gain was set to the minimum value.


Christian Viladrich
Co-author of "Astronomie Planétaire"
http://www.astroplanetes.com/
Co-author of "Astronomie Solaire"
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