Ca K images taken on May 29 and 31 / with a faint filament

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christian viladrich
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Ca K images taken on May 29 and 31 / with a faint filament

Post by christian viladrich »

Hi,

Here is a Ca K image taken on May 29 :

http://astrosurf.com/viladrich/astro/so ... a037nm.jpg

During acquisition, I could see a faint filament on the east. Comparison with the Bas2000 image confirmed it :

http://astrosurf.com/viladrich/astro/so ... ss2000.jpg


On May 31, the contrast of the filament was very low :

http://astrosurf.com/viladrich/astro/so ... m010nm.jpg

Comparaison with Bas2000 image :
http://astrosurf.com/viladrich/astro/so ... ss2000.jpg

An image taken with the Antlia 393-3 nm :

http://astrosurf.com/viladrich/astro/so ... 93-3nm.jpg

And some close-ups images with the double-stack Ca K :

http://astrosurf.com/viladrich/astro/so ... -014nm.jpg

http://astrosurf.com/viladrich/astro/so ... m014nm.jpg

http://astrosurf.com/viladrich/astro/so ... -014nm.jpg

Clear skies!

Christian


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Re: Ca K images taken on May 29 and 31 / with a faint filament

Post by arnedanielsen »

Fantastic result as always, Christian! I find the double-stack close-ups especially impressive!

Best regards,
Arne


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Re: Ca K images taken on May 29 and 31 / with a faint filament

Post by marktownley »

These are excellent Christian!

I think my favourite are the last three where the double stack filter starts to show some of the depth (or height?) of features in the lower chromosphere.


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Re: Ca K images taken on May 29 and 31 / with a faint filament

Post by Montana »

I agree with Mark :)
:bow :hamster:

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Re: Ca K images taken on May 29 and 31 / with a faint filament

Post by ffellah »

Excellent work as always, Christian. Very enjoyable.

Franco


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Re: Ca K images taken on May 29 and 31 / with a faint filament

Post by christian viladrich »

Thanks guys :-)


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Re: Ca K images taken on May 29 and 31 / with a faint filament

Post by Averton »

The double stacked CaK images are awesome Christian!


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Re: Ca K images taken on May 29 and 31 / with a faint filament

Post by LeoD »

Excellent!! I'm fun of your Ca hires images, Christian! :)
It's curious to see how more chromosphere details appears in Ca DS setup like filaments, fibrils in the most magnetically disturbed places.
Your spicula forest on the limb came out nice.
Leo


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Re: Ca K images taken on May 29 and 31 / with a faint filament

Post by christian viladrich »

LeoD wrote: Sun Jun 04, 2023 10:57 am Excellent!! I'm fun of your Ca hires images, Christian! :)
It's curious to see how more chromosphere details appears in Ca DS setup like filaments, fibrils in the most magnetically disturbed places.
Your spicula forest on the limb came out nice.
Leo
Sure. Double-stacking allows to sample a higher layer of the chromosphere (compared to SS).

The dream would be to have a 1 A double-stack configuration. Meaning finding another 1 A Ca K filter ...


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Re: Ca K images taken on May 29 and 31 / with a faint filament

Post by christian viladrich »

marktownley wrote: Fri Jun 02, 2023 7:28 am These are excellent Christian!

I think my favourite are the last three where the double stack filter starts to show some of the depth (or height?) of features in the lower chromosphere.
Thanks Mark,
There is definitely something like this.


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