Saturday Sun 13th August 2022

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Carbon60
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Saturday Sun 13th August 2022

Post by Carbon60 »

A few from this morning across the spectrum in Ha, CaK and 'WL'. A beautiful day, but too hot to be out for too long and the seeing conditions were getting worse by the minute. The images are not in chronological order.

First up are my 'WL' images, taken at 430 nm. These are 4 pane mosaics on a Tecnosky 125 mm f7.8 with a 90 mm mask. A Lacerta solar wedge was used for these shots fitted with a suitable filter. The camera was a Basler acA2440-75 um.

Image20220813_430_FD_Mono by Stuart Green, on Flickr

Image20220813_430_FD_Colour by Stuart Green, on Flickr

Next up are a few images in CaK (FD and closer views of the main sunspots) all were taken on the same scope/camera with a Lunt CaK B1800 module fitted with an additional Omega filter. The FD is a 4 pane mosaic and the closer views were imaged with a 2.7x Barlow.

Image20220813_CaK_FD_Mono by Stuart Green, on Flickr

Image20220813_CaK_FD_colour by Stuart Green, on Flickr

Unnumbered active region (I assume this one will be AR13081). The newest active region on the eastern limb.

Image20220813_CaK_AR13081_Mono by Stuart Green, on Flickr

Image20220813_CaK_AR13081_Colour by Stuart Green, on Flickr

AR13076

Image20220813_CaK_AR13076_Mono by Stuart Green, on Flickr

Image20220813_CaK_AR13076_colourpng by Stuart Green, on Flickr

Active regions 13071, 13077, 13074 & 13079 towards the western limb

Image20220813_CaK_AR13071_77_74_79_Mono by Stuart Green, on Flickr

Image20220813_CaK_AR13071_77_74_79_Colour by Stuart Green, on Flickr

Calcium proms :shock:
Image20220813_Cak_Prom1 by Stuart Green, on Flickr

Image20220813_Cak_Prom2 by Stuart Green, on Flickr

Over to the red end of the spectrum in hydrogen alpha:

Full disks in mono and colour, imaged and processed as nine pane mosaics.

Image20220813_Ha_FD_Mono by Stuart Green, on Flickr

Image20220813_Ha_FD_colour by Stuart Green, on Flickr

Finally AR13074 in Ha using my single stacked 250 mm RC telescope fitted with a Basler acA1920-155 um camera and 2.5x PM. No excuses...but the seeing really wasn't up to it with the growing heat of the morning (this was taken first thing, as soon as the rising Sun hit the scope). Consequently I've processed the life out of the original image to try to make something half decent. These super warm days (for us Brits) don't really lend themselves to large aperture hi-res imaging. Anyhow, here's the result.....

Image20220813_Ha_RCT_AR13074 by Stuart Green, on Flickr


Trying to cool off indoors, processing and uploading these images....but still too warm. I need ice cream :lol:

Thanks for looking.

Stu.
Last edited by Carbon60 on Sat Aug 13, 2022 8:22 pm, edited 2 times in total.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Saturday Sun 13th August 2022

Post by MAURITS »

Excellent Calcium II images Stu.
Very nice detailed Ha region.


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Re: Saturday Sun 13th August 2022

Post by allhoest »

Very fine; nice to see prominence in CaK.
Alex


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Re: Saturday Sun 13th August 2022

Post by eroel »

Stu:
Very nice session, beautiful CaK images.
Regards,
Eric.


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Re: Saturday Sun 13th August 2022

Post by DeepSolar64 »

Stu,
This is a nice collection of three-light images. You have captured all well. I am especially impressed with the CaK proms. Beautiful!!

James


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Re: Saturday Sun 13th August 2022

Post by MapleRidge »

Superb series of images Stuart...nicely done :bow

Brian


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Re: Saturday Sun 13th August 2022

Post by marktownley »

A great run of images Stu!


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Re: Saturday Sun 13th August 2022

Post by arnedanielsen »

Great session Stu!

Thanks for sharing,
Arne


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Re: Saturday Sun 13th August 2022

Post by Carbon60 »

Many thanks, everyone. I really appreciate your feedback.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Saturday Sun 13th August 2022

Post by nicspenceryork »

What a selection, fantastic!
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Re: Saturday Sun 13th August 2022

Post by Carbon60 »

nicspenceryork wrote: Sun Aug 14, 2022 2:55 pm What a selection, fantastic!
Nic
Many thanks, Nic. Much appreciated.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Saturday Sun 13th August 2022

Post by Radon86 »

Hi Stuart,

Excellent work and imaging !
How did you cope with those temperatures ?

I was too scared of the high temps and stayed indoors !
DId you manage to measure the seeing quality ? I think in high heat, the seeing may not be too good, especially if you imaging over houses or concrete ??



Magnus


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Re: Saturday Sun 13th August 2022

Post by ffellah »

An excellent and complete set, Stu: looks like you had a great session.

Franco


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Re: Saturday Sun 13th August 2022

Post by Carbon60 »

Many thanks, Magnus and Franco.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Saturday Sun 13th August 2022

Post by Carbon60 »

Radon86 wrote: Mon Aug 15, 2022 4:56 pm Hi Stuart,

Excellent work and imaging !
How did you cope with those temperatures ?

I was too scared of the high temps and stayed indoors !
DId you manage to measure the seeing quality ? I think in high heat, the seeing may not be too good, especially if you imaging over houses or concrete ??



Magnus
Hi Magnus,
I image early in the morning to avoid the heat. This provides the best seeing which rapidly deteriorates as the roofs and driveways around me warm in the summer Sun. It’s a small window of opportunity because much of my view towards the east is blocked by my neighbours’ house and trees.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Saturday Sun 13th August 2022

Post by Montana »

Oh my!! what a lovely collection, I do like the CaK proms :bow :hamster:

Alexandra


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Re: Saturday Sun 13th August 2022

Post by Carbon60 »

Many thanks, Alexandra :D

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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