Active region in CaK, September 22nd, 2020

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LTHB
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Active region in CaK, September 22nd, 2020

Post by LTHB »

Splendid seeing over here today, unfortunately not much time for imaging, but enough for a few videos of the new active region coming around the rim. A quickly processed version of the first:

Image

Full resolution here: https://live.staticflickr.com/65535/503 ... 67bd_o.jpg

Regards,

Frank


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Re: Active region in CaK, September 22nd, 2020

Post by EGRAY_OBSERVATORY »

That's a fabulous close-up of the new AR Frank. Well done in the short time available.

Thanks vm
Terry


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Re: Active region in CaK, September 22nd, 2020

Post by Montana »

Oh my word!! was the first thing I uttered when I saw this, utterly jaw dropping beauty :hamster: :bow :bow

What CaK filter do you use?

Alexandra


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Re: Active region in CaK, September 22nd, 2020

Post by JochenM »

That worked out beautifully, Frank. Excellent work.


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Re: Active region in CaK, September 22nd, 2020

Post by John »

That's a really fine image with bright points that are, I assume, pores. Would be grateful for details of your setup and processing.


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Re: Active region in CaK, September 22nd, 2020

Post by David_The_Bears_Fan »

That's a great shot.


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Re: Active region in CaK, September 22nd, 2020

Post by LTHB »

Thanks for the kind words, folks!

Alexandra, I'm still tinkering with my CaK filter stack: I have two Coronado filters (one from a PST and one from a SolarMax70CaK), the present combination is Chroma blue CCD/EO390-45/KG3/Coronado/EO394-10/Coronado (and the ARIES DERF in front, of course). I think I get better resolution now than last year (if the seeing allows, as it did a few times in the last weeks, going down as far as 0.5" for brief moments), and at least part of the reason is the KG3: It keeps the temperature of the following filters down (and I've also added a small fan to cool the KG3 itself).

John, the setup is a Mewlon210 with a front DERF and an ASI290. For processing I use only imppg, as most people here do, and GIMP for final touches.


Yesterday was another clear afternoon with really nice seeing, probably the last for the coming weeks, so I could get another shot at the AR:

Image


Full resolution here: https://live.staticflickr.com/65535/503 ... 488b_o.jpg

Kind regards,

Frank


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Re: Active region in CaK, September 22nd, 2020

Post by marktownley »

Really impressive images Frank!


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Re: Active region in CaK, September 22nd, 2020

Post by LeoD »

Great job and cool setup, Frank!
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Re: Active region in CaK, September 22nd, 2020

Post by LTHB »

Thanks, Mark and Leo!

Meanwhile it's cloudy here and autumn has arrived, but yesterday I had another hour of clear sky and good seeing (for my location, around 1.2"), however not as splendid as the days before, so one more follow-up image of the active region with lower resolution:

Image

Full resolution here: https://live.staticflickr.com/65535/503 ... 2856_o.jpg

Kind regards,

Frank


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Re: Active region in CaK, September 22nd, 2020

Post by Valery »

Hi Frank,

You have some very nice images when the seeing cooperates.

So, wish you more calm seeing and clear days.


Valery


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Re: Active region in CaK, September 22nd, 2020

Post by LTHB »

Thanks, Valery! I hope for more of this kind of seeing too!

I processed another image from last Tuesday (September 22nd) in the meantime, an arbitrary patch of quiet solar surface.

Image

Full resolution: https://live.staticflickr.com/65535/503 ... 1243_o.jpg

Regards,

Frank


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Re: Active region in CaK, September 22nd, 2020

Post by Montana »

Some super additions Frank :bow :hamster:

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Re: Active region in CaK, September 22nd, 2020

Post by marktownley »

Nice addition, I think your processing looks very natural.


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