Ha and CaK images 17th April 2024

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Ha and CaK images 17th April 2024

Post by Carbon60 »

A second day of Sun...yay, but not without some scudding clouds making for a frustrating imaging session, especially making mosaics. The seeing wasn't great for the close views :roll: :roll:

Image20240417_CaK_FD_mono by Stuart Green, on Flickr

Image20240417_CaK_FD_colour by Stuart Green, on Flickr

Image20240417_Ha_FD_Mono by Stuart Green, on Flickr

Image20240417_Ha_FD_colour by Stuart Green, on Flickr

Image20240417_Ha_AR13643 by Stuart Green, on Flickr

Image20240417_Ha_AR13643_colour by Stuart Green, on Flickr

Thanks for looking.

Stu.


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Re: Ha and CaK images 17th April 2024

Post by KMH »

Very nice!

Kevin


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Re: Ha and CaK images 17th April 2024

Post by marktownley »

Excellent disks thanks Stu! I just missed imaging this evening after work, the clouds returned!


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Re: Ha and CaK images 17th April 2024

Post by ffellah »

Awesome images, Stu: your usual !

Franco :D


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Re: Ha and CaK images 17th April 2024

Post by pdmphoton »

Another fine set of images. Thank you for sharing your excellent work.

Paulm


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Re: Ha and CaK images 17th April 2024

Post by arnedanielsen »

Very good results despite the seeing Stu!


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Re: Ha and CaK images 17th April 2024

Post by DeepSolar64 »

Stu,
Very nice work. Your CaK and Ha full disc images are great and I think you caught a flare on those two close ups. The colorized close up is splendid. It just looks HOT!!

James


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Re: Ha and CaK images 17th April 2024

Post by rigel123 »

Excellent Stu!


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Re: Ha and CaK images 17th April 2024

Post by cybermayberry »

Excellent images!!


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Re: Ha and CaK images 17th April 2024

Post by OlegLviv »

Thank you but why do not write your set up?=))


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Re: Ha and CaK images 17th April 2024

Post by Dennis »

Nice set of images Stu, esp. the h-a close up.


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Re: Ha and CaK images 17th April 2024

Post by Carbon60 »

Thank you, everyone. 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: Ha and CaK images 17th April 2024

Post by Carbon60 »

OlegLviv wrote: Thu Apr 18, 2024 7:58 am Thank you but why do not write your set up?=))
Hi Oleg,

I’m getting lazy…. :lol:

Ha FD is a mosaic taken with a Lunt 60 triple stacked, fitted with a 2.7x Barlow and Basler acA2440-075 um camera.

CaK FD is also a mosaic, taken using a modified Lunt B1800 module (Baader K-line and Omega filter replacing the stock ‘blue’ filters) double stacked with a second ‘yellow’ filter rescued from a B600 Lunt CaK module. The camera was a Basler acA2440-075 um with a 2.5x Powermate. I used a 72mm Altair Lightwave scope stopped down to 43 mm, delivering an f10 light cone to the filter module.

The close views were taken using my 150mm home brew scope based on an iStar optical 150/f10 objective, internal ERF, internal Barlow lens, two 35mm Lunt etalons and a refocusing lens with 2.5x PM, giving an effective focal ratio of about f34. The camera was a Basler acA1920-155 um.

…..it’s a lot to write every time I post some images :lol: :lol:

Thanks for asking.

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: Ha and CaK images 17th April 2024

Post by Carbon60 »

marktownley wrote: Wed Apr 17, 2024 7:55 pm Excellent disks thanks Stu! I just missed imaging this evening after work, the clouds returned!
That’s a shame, Mark. So often the case. Sometimes the sky can be a lovely blue from horizon to horizon and then turn nasty just when things are setup ready to roll…. :roll: :roll:

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: Ha and CaK images 17th April 2024

Post by eroel »

Stu:
Super images, always clean and crisp.
Thanks for sharing your work.
Best regards.
Eric.


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Re: Ha and CaK images 17th April 2024

Post by rsfoto »

Hi Stuart,

Excellent images


regards Rainer

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Re: Ha and CaK images 17th April 2024

Post by OlegLviv »

Carbon60 wrote: Thu Apr 18, 2024 2:52 pm
OlegLviv wrote: Thu Apr 18, 2024 7:58 am Thank you but why do not write your set up?=))
Hi Oleg,

I’m getting lazy…. :lol:

Ha FD is a mosaic taken with a Lunt 60 triple stacked, fitted with a 2.7x Barlow and Basler acA2440-075 um camera.

CaK FD is also a mosaic, taken using a modified Lunt B1800 module (Baader K-line and Omega filter replacing the stock ‘blue’ filters) double stacked with a second ‘yellow’ filter rescued from a B600 Lunt CaK module. The camera was a Basler acA2440-075 um with a 2.5x Powermate. I used a 72mm Altair Lightwave scope stopped down to 43 mm, delivering an f10 light cone to the filter module.

The close views were taken using my 150mm home brew scope based on an iStar optical 150/f10 objective, internal ERF, internal Barlow lens, two 35mm Lunt etalons and a refocusing lens with 2.5x PM, giving an effective focal ratio of about f34. The camera was a Basler acA1920-155 um.

…..it’s a lot to write every time I post some images :lol: :lol:

Thanks for asking.

Stu.
Stu thank you but me interesting your iStar optical 150/f10 objective, internal ERF, internal Barlow lens, two 35mm Lunt etalons and a refocusing lens with 2.5x PM, giving an effective focal ratio of about f34.....this is 2xlunt 35 etalons with telecentric system? 150mm>PM2.5X>1-st 35mm lunt etalon>2-nd 35mm lunt etalon>BF?>camera? How f34 with f10 telescope?
And what do you mean internal Barlow lens?


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Re: Ha and CaK images 17th April 2024

Post by Carbon60 »

OlegLviv wrote: Thu Apr 18, 2024 4:33 pm
Carbon60 wrote: Thu Apr 18, 2024 2:52 pm
OlegLviv wrote: Thu Apr 18, 2024 7:58 am Thank you but why do not write your set up?=))
Hi Oleg,

I’m getting lazy…. :lol:

Ha FD is a mosaic taken with a Lunt 60 triple stacked, fitted with a 2.7x Barlow and Basler acA2440-075 um camera.

CaK FD is also a mosaic, taken using a modified Lunt B1800 module (Baader K-line and Omega filter replacing the stock ‘blue’ filters) double stacked with a second ‘yellow’ filter rescued from a B600 Lunt CaK module. The camera was a Basler acA2440-075 um with a 2.5x Powermate. I used a 72mm Altair Lightwave scope stopped down to 43 mm, delivering an f10 light cone to the filter module.

The close views were taken using my 150mm home brew scope based on an iStar optical 150/f10 objective, internal ERF, internal Barlow lens, two 35mm Lunt etalons and a refocusing lens with 2.5x PM, giving an effective focal ratio of about f34. The camera was a Basler acA1920-155 um.

…..it’s a lot to write every time I post some images :lol: :lol:

Thanks for asking.

Stu.
Stu thank you but me interesting your iStar optical 150/f10 objective, internal ERF, internal Barlow lens, two 35mm Lunt etalons and a refocusing lens with 2.5x PM, giving an effective focal ratio of about f34.....this is 2xlunt 35 etalons with telecentric system? 150mm>PM2.5X>1-st 35mm lunt etalon>2-nd 35mm lunt etalon>BF?>camera? How f34 with f10 telescope?
And what do you mean internal Barlow lens?
Hi Oleg,

The internal ‘Barlow’ is actually a Plano/concave lens positioned to collimate the f10 light cone. The optics are simple and not perfect, but good enough. The ‘collimated’ light passes through the two Lunt 35 etalons and is then re-focused using a biconvex lens originally from one of the Lunt 35s telescopes. Over all this gives a scope with an effective focal length of about f13.6. A 2.5x PM in front of the camera takes this to around f34.

Hope this helps.

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: Ha and CaK images 17th April 2024

Post by Carbon60 »

Thank you Eric and Rainer.

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: Ha and CaK images 17th April 2024

Post by Ivan »

Stuart, they're divine! :bow

Ivan


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Re: Ha and CaK images 17th April 2024

Post by MAURITS »

Really excellent results Stu.


Regards,
Maurits

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Re: Ha and CaK images 17th April 2024

Post by Carbon60 »

Thanks Ivan and Maurits.

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: Ha and CaK images 17th April 2024

Post by SolarMathmo »

Super pictures. I see some of them at least were taken with a Basler. What was your capture software (sorry if I missed that)? I was just trying to figure out if Sharpcap was OK with Basler gear now - there seem to be some ups and downs on that with changes to Pylon.


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Re: Ha and CaK images 17th April 2024

Post by Carbon60 »

SolarMathmo wrote: Wed May 22, 2024 7:10 am Super pictures. I see some of them at least were taken with a Basler. What was your capture software (sorry if I missed that)? I was just trying to figure out if Sharpcap was OK with Basler gear now - there seem to be some ups and downs on that with changes to Pylon.
Hi,
I use Genika Astro for image capture.
FYI, Basler cameras work with SharpCap. I use version 5.2, but I think version 7.5 also works. It’s the Redistributables Pylon Runtime version that’s required, as it contains the driver software needed to operate within SharpCap and others.

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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