2021-06-02 - AR2827 in CaK

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JochenM
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2021-06-02 - AR2827 in CaK

Post by JochenM »

As mentioned in my previous post, yesterday's CaK imaging wasn't a great success; so I was eager to try again today when the forecast predicted fairly promising conditions.

I might have gone a bit overboard with data collection, coming in at just shy of 220Gb of captures (did CaK only today). But in the end, it did give me some nice data to work with; so worth it!

Setup: 150mm achromat @ 120mm f/15, Lunt CaK b1800, Baader Blue CCD filter, ASI290.

Thanks for looking.

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Re: 2021-06-02 - AR2827 in CaK

Post by EGRAY_OBSERVATORY »

Thanks for your excellent-efforts for these captures Jochen.
Nice clear and sharp showing as a close-up.

Thanks for sharing
Terry


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Re: 2021-06-02 - AR2827 in CaK

Post by DeepSolar64 »

That 6" achro did a wonderful job!


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Re: 2021-06-02 - AR2827 in CaK

Post by Carbon60 »

Excellent, Jochen. These look great.

Stu.


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Re: 2021-06-02 - AR2827 in CaK

Post by JochenM »

Thanks Terry/James/Stu.


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Re: 2021-06-02 - AR2827 in CaK

Post by marktownley »

Looking good Jochen!


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Re: 2021-06-02 - AR2827 in CaK

Post by ffellah »

Lovely images Jochen

Franco


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Re: 2021-06-02 - AR2827 in CaK

Post by yltansg »

Hi Jochen,

220GB of data!!. That is half my HDD for data. Always great to see the fibrils out of the sunspot.

Great job!

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Re: 2021-06-02 - AR2827 in CaK

Post by JochenM »

Thanks Mark/Franco/Alfred.

I was simply launching a capture everytime the seeing looked decent (just eyeballing it on the screen, don't have an SSM). It adds up quickly :)


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Re: 2021-06-02 - AR2827 in CaK

Post by krakatoa1883 »

Fine images, the structure of the penumbra has been well resolved.


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Re: 2021-06-02 - AR2827 in CaK

Post by Montana »

Superb and very fine quality :hamster: :bow with 220GB do you have a timelapse then :)

Alexandra


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Re: 2021-06-02 - AR2827 in CaK

Post by JochenM »

Thanks Raf/Alexandra.

The captures were a bit all over the place (time in between) with a bunch of them being a blurry mess as well. So no timelapse I'm afraid.


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Re: 2021-06-02 - AR2827 in CaK

Post by eroel »

Jochen:
Beautiful captures.
Well done.
Eric.


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Re: 2021-06-02 - AR2827 in CaK

Post by VasilevIvan »

Jochen, nice captures in CaK! Would you use some filter in front of the main lens or you just reduced the aperture from 150mm to 120mm? I mean possible problem with the B1800 filter overheating.

Best wishes, Ivan.


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Re: 2021-06-02 - AR2827 in CaK

Post by p_zetner »

Very nice calcium shots, Jochen.
Cheers.
Peter


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Re: 2021-06-02 - AR2827 in CaK

Post by JochenM »

Thanks Eric/Ivan/Peter.
VasilevIvan wrote: Fri Jun 04, 2021 9:08 pm Jochen, nice captures in CaK! Would you use some filter in front of the main lens or you just reduced the aperture from 150mm to 120mm? I mean possible problem with the B1800 filter overheating.

Best wishes, Ivan.
Hi Ivan.

That would indeed be a legitimate concern here. What I've done is place a Baader Blue CCD filter in front of the B1800 module, acting as a sub-aperture ERF.


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