Ca II K3 Prominences - 3rd Jan 2022

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Ca II K3 Prominences - 3rd Jan 2022

Post by Merlin66 »

An exciting collection of proms visible this morning - MiniSHG Ca II K.
Enjoy!!
CaK proms
CaK proms
092514_protus.jpg (154.68 KiB) Viewed 745 times
092514_prom01.jpg
092514_prom01.jpg (113.77 KiB) Viewed 737 times
092514_prom02.jpg
092514_prom02.jpg (405.19 KiB) Viewed 737 times


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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by Bob Yoesle »

Really nice image Ken - and amazing capture of CaK prominence activity!


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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by DeepSolar64 »

WoW! These are among the best images of prominences I have seen in CaK!!


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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by Merlin66 »

Thanks guys, appreciate.
These were taken in Ca II K3 (central wavelength) resolution about 0.18A.
Processed with Matt's version of INTI
No additional processing or enhancement - as is, straight out of the ASI 178 ( a bit of colour added in IrfanView).
FireCapture V2.7
Gain, 169
Exp 1.7ms
fps 140
21sec 16 bit 2925 frames SER file, 3.6 Gb


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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by Montana »

Wow!! these are amazing :bow :bow :bow

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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by marktownley »

These are excellent Ken!


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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by ffellah »

Super captures of the proms, Ken

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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by Merlin66 »

Thanks for the positive response!
It's pleasing to see that the results of the MiniSHG are being so well received.
Next challenge will be the Mg (b2) band.....


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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by jacinto »

Incredible prominences, excellent images


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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by Jordan Konisky »

Superb, Ken.

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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by eroel »

Ken:
Superb CaK images.
Best regards and a Happy and safe new year.
Eric.


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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by EGRAY_OBSERVATORY »

As said already before me here ken.

Absolutely amazing

Thanks vm
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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by EGRAY_OBSERVATORY »

For comparison with Ken's fab images, SDO from the same date, shows some of the difference with SDO's AIA-304 capture.

Terry
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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by Merlin66 »

Once again thanks very much for the positive response!
Appreciated.


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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by MapleRidge »

Superb CaK images there Ken :bow

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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by Carbon60 »

Fabulous prom images, Ken.

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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by p_zetner »

These are beautiful prominence shots, Ken.

I’m quite surprised that you can achieve a spectral resolution of 0.08A. Do you have some spectra you could post (good image resolution) to support this determination?

Cheers.
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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by Stardust5858 »

Brilliant, I quite often see prom's in CaK. Lovely captures.


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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by Merlin66 »

Peter,
To be honest the current measured performance of the MiniSHG in Ha is around R=35475 (0.18A), this equates to x3 the dispersion of 0.063A/pixel.
Finding tight reference lines to verify best possible resolution is problematic - I should try using the Neon lamp.....(I've corrected the original post)
092410_071021_FWHM_02.JPG
092410_071021_FWHM_02.JPG (125.17 KiB) Viewed 586 times


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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by Merlin66 »

I'd be interested to see any CaK images taken around the same time on the 3rd Jan for comparison......


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Re: Ca II K3 Prominences - 3rd Jan 2022

Post by Merlin66 »

viewtopic.php?f=4&t=34393
Missed this one by Steve!
In the full res CaK image he shows the same proms......


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