8.10.2021 AR2882 through cloud and trees.

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Rusted
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8.10.2021 AR2882 through cloud and trees.

Post by Rusted »

Cloud, trees, PST etalon woes.. Ignore it if you can. :D
The first image is though cloud. The second though a fork in the trees.
Ellerman bombs suggest I'm not even on-band for H-a. :roll:
Watched a rapid incursion into the umbra from the SE.
The large filament north of the AR is highly mobile and rotating anticlockwise.

8.10.2021 16.35 1.25x 2x gpcs.jpg
8.10.2021 16.35 1.25x 2x gpcs.jpg (140.68 KiB) Viewed 491 times
8.10.2021 16.54 1.25x 2x gpcs.jpg
8.10.2021 16.54 1.25x 2x gpcs.jpg (147.78 KiB) Viewed 491 times


http://fullerscopes.blogspot.dk/

H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
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Re: 8.10.2021 AR2882 through cloud and trees.

Post by eroel »

Chris:
Well you got nice images anyway.
Have a nice and sunny weekend.
Eric.


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Re: 8.10.2021 AR2882 through cloud and trees.

Post by DeepSolar64 »

I think they look fine Chris. You did well despite your challenges.


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Re: 8.10.2021 AR2882 through cloud and trees.

Post by Rusted »

Thank you. :bow

Your encouragement makes it all worthwhile. :D


http://fullerscopes.blogspot.dk/

H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
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Re: 8.10.2021 AR2882 through cloud and trees.

Post by Montana »

WOW!! right up its nose :hamster: :bow :bow (remember that dark black umbra through, there must be some detail in it :) )

Alexandra


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Re: 8.10.2021 AR2882 through cloud and trees.

Post by Carbon60 »

Challenging conditions, Chris. Nice captures.

Stu


H-alpha, WL and Ca II K imaging kit for various image scales.
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Re: 8.10.2021 AR2882 through cloud and trees.

Post by arnedanielsen »

Great high-res images, Chris.

Best regards,
Arne


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Re: 8.10.2021 AR2882 through cloud and trees.

Post by p1taylor »

Great images, Chris.

peter


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Re: 8.10.2021 AR2882 through cloud and trees.

Post by EGRAY_OBSERVATORY »

Excellent close-up of this monster-spot Chris and highly likely flares have and will occur...

Thanks for sharing

Terry


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Re: 8.10.2021 AR2882 through cloud and trees.

Post by Rusted »

Thank you everybody. :bow

To Alexandra:

Shadow only has value where substance has fled. ;)


http://fullerscopes.blogspot.dk/

H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
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Re: 8.10.2021 AR2882 through cloud and trees.

Post by MAURITS »

Thanks for sharing Chris, the images looks very good despite the conditions.


Regards,
Maurits

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Re: 8.10.2021 AR2882 through cloud and trees.

Post by ffellah »

Chris: good work giving the conditions !

Franco


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Re: 8.10.2021 AR2882 through cloud and trees.

Post by Rob63 »

NIce report and really good images despite the conditions.

Rob.


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Re: 8.10.2021 AR2882 through cloud and trees.

Post by Radon86 »

Hello Rusted,

I don't know how you image in those conditions. Is that a black hole in the centre ?
What is your imaging scale ? Are you usng a 150mm refractor ??
Your imaging system looks super complex, how did you work it out ?

Thanks

Magnus


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Scopes: Altair Astro Travel ED70mm (F 420mm, D=70mm);; Skywatcher 90mm (F 910mm D=90mm); GSO focuser;;Altair Astro 60mm guidescope (D=60mm,F=225mm)
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Re: 8.10.2021 AR2882 through cloud and trees.

Post by Rusted »

Thank you all for your kind words. :bow

Magnus:

My full H-alpha set-up is listed in my signature:
It is a basic PST mod. Using a Baader, full aperture 160mm D-ERF to reduce the heat load on the system.
iStar 150mm f/10 H-alpha objective in home made, steel tube.
Baader 2" 35nM & KG3 protective filters on 2" extensions ahead of the FT2535 focuser.

PST etalon in AOK Swiss adapters. Baader 1.25x GPC tight against the back of the etalon.
Not in front where it would alter the f/ratio. The PST etalon needs to see an f/10 light cone.
Lunt S1200S2 straight through, blocking filter rather than an elbow.
One of three T-S GPCs on the camera nose. Power chosen to match the seeing conditions.

The popular ZWO ASI174MM USB3 mono camera. Internal SSDs storage in an i7 laptop.
I monitor the camera on a 27" hi-res AOC monitor.
This provides a very large, square, viewing panel of the hugely magnified, sun's surface in SharpCap as seen by the camera.
I usually get over 100fps at 10ms with a 912x912 frame size.

The greatest weakness in my system is the PST etalon.
While it provides highly detailed images, in good seeing, it suffers from a ring-shaped, sweet spot.
This causes a band of better detail across the frame. With brighter, less detailed corners.
So I fiddle constantly with the etalon tuning and tilt.

I work in comfort at my computer desk, in my home made, raised dome. With a very large, home made, equatorial mounting.
Spending many hours imaging whenever the sun is shining. They say practice makes perfect. So I practice endlessly. ;)

I owe everything to my fellow solar telescope modifiers, observers and imagers.
For their shining examples, guidance in methods, software and equipment choice within my budget.
They have saved me years in desperately trying to catch up with their amazing skills. :bow


http://fullerscopes.blogspot.dk/

H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
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Re: 8.10.2021 AR2882 through cloud and trees.

Post by Ivan »

Great shots, Chris. They show that there are no barriers for real hobby, real passion!

Ivan


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Re: 8.10.2021 AR2882 through cloud and trees.

Post by Radon86 »

Rusted wrote: Sat Oct 09, 2021 4:12 pm Thank you all for your kind words. :bow
Thanks Rusted for all the technical info. I will analyse it later !!
:band

All the best,

Magnus


Solar: H-alpha": Quark Chromosphere filter; Baader white light filters
Scopes: Altair Astro Travel ED70mm (F 420mm, D=70mm);; Skywatcher 90mm (F 910mm D=90mm); GSO focuser;;Altair Astro 60mm guidescope (D=60mm,F=225mm)
Cameras: ASI120mm-S,ASI174mm
Mount: SW HEQ5 Pro, SW EQ3 Pro Synscan (SW = Skywatcher),Vixen Polarie tracker (portable setup)
Accessory: SW Auto-focuser
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Re: 8.10.2021 AR2882 through cloud and trees.

Post by marktownley »

Good looking shots here Chris!


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