Belated August Ca K image / 8/29 & 30
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Belated August Ca K image / 8/29 & 30
Dear All,
I am running out of time with too many things to do ...Here are some Ca K images taken at the end of August.
This one image was taken on August 29 with a double stack Ca K filter. Note the small flare in the sunspot group :
http://astrosurf.com/viladrich/astro/so ... Alluxa.jpg
One day later, with a simple stack Ca K (which explains the reduction of contrast) :
http://astrosurf.com/viladrich/astro/so ... SI1600.jpg
And a zoom at the small group :
http://astrosurf.com/viladrich/astro/so ... ASI290.jpg
Clear skies
Christian Viladrich
I am running out of time with too many things to do ...Here are some Ca K images taken at the end of August.
This one image was taken on August 29 with a double stack Ca K filter. Note the small flare in the sunspot group :
http://astrosurf.com/viladrich/astro/so ... Alluxa.jpg
One day later, with a simple stack Ca K (which explains the reduction of contrast) :
http://astrosurf.com/viladrich/astro/so ... SI1600.jpg
And a zoom at the small group :
http://astrosurf.com/viladrich/astro/so ... ASI290.jpg
Clear skies
Christian Viladrich
Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
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Re: Belated August Ca K image / 8/29 & 30
Excellent images, Christian, especially the close view. Lots of lovely detail.
Stu.
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/
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Belated August Ca K image / 8/29 & 30
SUPERB!
Marios S.Ioannou
My Gallery https://www.flickr.com/photos/195609307@N07/albums
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Re: Belated August Ca K image / 8/29 & 30
Excellent Christian, the difference with double stack is really quite apparent.
http://brierleyhillsolar.blogspot.co.uk/
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Re: Belated August Ca K image / 8/29 & 30
Wow!!! what a joy to view I like the use of tilting sun too, I should use it more
Alexandra
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Re: Belated August Ca K image / 8/29 & 30
Beautiful FDs clearly showing the advantage of using a DS. Superb Hi Res of AR 2860 with great seeing.
John
John
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Re: Belated August Ca K image / 8/29 & 30
The only perfectly tuned setup and fantastic output of the processing, that is worth repeating and trying out
What could be a comparison with the 183 camera for both cases, FD in full resolution instead of the 1600 and cropped one vs the 290 for close-up?
regards
Leo
What could be a comparison with the 183 camera for both cases, FD in full resolution instead of the 1600 and cropped one vs the 290 for close-up?
regards
Leo
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Re: Belated August Ca K image / 8/29 & 30
Thanks to all :-)
Leo,here the ASI 290 runs at 166 frames/s. So, I would say it would take the lead on the ASI183. But this is just my guess.
Leo,here the ASI 290 runs at 166 frames/s. So, I would say it would take the lead on the ASI183. But this is just my guess.
Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
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http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
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Re: Belated August Ca K image / 8/29 & 30
Well, you're right, crop on the 183 chip with the same resolution gives only 80fps, i.e. half as much compared to full frame of 290
thanks
Leo
thanks
Leo
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Re: Belated August Ca K image / 8/29 & 30
I really like my 290mm for CaK, it is my goto camera for anything other than full disk at 393nm.
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!