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Old 31-10-2021, 02:56 PM
Eris (Gerard)
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Our Sun Today October 31

Today’s images were taken in average seeing conditions and comprise a selection of Ca K, Continuum and a whole disc taken with a Wratten 18A filter. The latter though was colourized yellow rather than a deep purple the colour of the filter. The prominence in Ca K was difficult to pick up in any detail.
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Click for full-size image (Sun Spots Continuum AR2891.jpg)
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Click for full-size image (Sun Ca K Whole Disc.jpg)
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Click for full-size image (Sun Ca K AR2887- 2889-2891.jpg)
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Click for full-size image (Sun CaK AR2887.jpg)
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Click for full-size image (Ca K Prominence.jpg)
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  #2  
Old 31-10-2021, 03:42 PM
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Merlin66 (Ken)
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Well done, Gerard.
A great collection of multi-wavelength shots.
Keep them coming!
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Old 31-10-2021, 06:40 PM
Dennis
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Looks quite busy with a lot of activity, nice captures.

Do you have separate 'scopes, or do you just re-configure the one 'scope for the different wavelengths?

Cheers

Dennis
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Old 31-10-2021, 07:41 PM
Eris (Gerard)
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Thanks for your comments Ken and Dennis they are much appreciated.
Dennis, all shots were taken through an 80 mm refractor. It was done just by changing the filter package.
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Old 31-10-2021, 09:13 PM
Dennis
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Quote:
Originally Posted by Eris View Post
Thanks for your comments Ken and Dennis they are much appreciated.
Dennis, all shots were taken through an 80 mm refractor. It was done just by changing the filter package.
Thanks Gerard, I was wondering about whether you had to make many changes, including re-focusing, etc. like when I switch out a Powermate and then plug in a Reducer, which is always an unwelcome overhead.

Cheers

Dennis
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Old 31-10-2021, 11:03 PM
Eris (Gerard)
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Yes Dennis those variables are a constant essential when trying to achieve some positive results in the mix. Experimentation is half the fun.
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