2020-09-10 - FD dualband comparison + prom

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JochenM
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2020-09-10 - FD dualband comparison + prom

Post by JochenM »

After a very long absense; the sun graced us with its presence over here again. It won't last long; but I'll take what I can get :)

At first sight, not overly much going on at our parent star. The only two things that really stand out are a fairly sizeable prominence on the southeastern limb as well as a plage in the south. So those were the targets for today's session.

Setup:

HA: Lunt LS50 b600, IMX178.
CaK: 80ED (stopped down to 60mm), Lunt CaK b1800, IMX178.

Thanks for looking!

ImageSun - dualband comparison. by Jochen Maes, on Flickr

ImageSolar prominence. by Jochen Maes, on Flickr


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Re: 2020-09-10 - FD dualband comparison + prom

Post by Montana »

Super!! glad to hear you have the Sun again and some great images :bow :hamster: cloud all day here.

Alexandra


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Re: 2020-09-10 - FD dualband comparison + prom

Post by ffellah »

Beautiful images, Jochen. Interesting that you got some very nice images with the Lunt 50. I assume you took flats for that. How do you take your flats with the Lunt 50 ? Do you just defocus or put some transparent material over the front lens ?

Franco


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Re: 2020-09-10 - FD dualband comparison + prom

Post by pedro »

great images Jochen, congrats on SPOD


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Re: 2020-09-10 - FD dualband comparison + prom

Post by JochenM »

Thanks all; I'm honored.

Franco, I actually never take flats (can't be bothered :D ). What I do however, is apply an artificial flat (for lack of a better word) in Photoshop. See the link below (writeup by Marty) for an idea of what that means exactly. The actual values used obviously differ a bit from one image to the next; but you get the general idea.

https://www.cloudynights.com/topic/5799 ... try7924640


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Re: 2020-09-10 - FD dualband comparison + prom

Post by EGRAY_OBSERVATORY »

Fab images and on SPOD today Jochen.
Thanks to yourself and Pedro at least, I failed to put my images the right way up, due to the scope reversal, but hey at least like you, the weather opened-up today - at last...

Regards
Terry


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Re: 2020-09-10 - FD dualband comparison + prom

Post by DeepSolar64 »

Very nice Jochen! Awesome SPOD!!


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Re: 2020-09-10 - FD dualband comparison + prom

Post by JochenM »

Thanks Terry/James.


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Re: 2020-09-10 - FD dualband comparison + prom

Post by eroel »

Jochen, a very nice comparison and images.
Best regards and have a sunny weekend.
Eric.


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Re: 2020-09-10 - FD dualband comparison + prom

Post by JochenM »

Thanks Eric. Have a good weekend.


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Re: 2020-09-10 - FD dualband comparison + prom

Post by rsfoto »

Hi Jochen,

Well done and I have not seen the Sun for the last 10 days or at least had a hole big enough to record my videos.


:cry: :cry: :cry:


regards Rainer

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Re: 2020-09-10 - FD dualband comparison + prom

Post by JochenM »

Thanks Rainer.

I was honestly already wondering (used to seeing your images/posts). Fingers crossed that it'll pass soon enough!


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