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Herra Kuulapaa

Friday sun 20.5.2017

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It was a bit hazy day and I'd like to use it as an excuse for the gradients. But I think that pro imager would have been able to fix them in PP.

19052017_1500.jpg

Click it large!

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Nicely done, perhaps you could list the equipment for those who missed your other thread.

Dave

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Lovely Image. I do (casually) wonder what the arc sec resolution limit
solar scopes is... Some variation on the Dawes' Limit... Mr. Nyquist? :)
How big an aperture is still beneficial for an HA scope... CaK scope etc.

Here's e.g. a stopped down (65mm only) barlowed TAK CaK setup:
http://www.astrosurf.com/viladrich/astro/instrument/intrumentCaK/instrumentCak.html

Might effect any aspiring purchaser of front mounted ERF's though! ;) 

Edited by Macavity

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It all comes down to the seeing conditions. The average seeing disk (PSF) is usually >2 arc sec and this swamps the theoretical resolution of the telescope/ camera.

 

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that's a great image mate, lovely details, the gradients don't look too bad to me. thanks, charl.

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20 hours ago, Macavity said:

Lovely Image. I do (casually) wonder what the arc sec resolution limit
solar scopes is... Some variation on the Dawes' Limit... Mr. Nyquist? :)
How big an aperture is still beneficial for an HA scope... CaK scope etc.

Here's e.g. a stopped down (65mm only) barlowed TAK CaK setup:
http://www.astrosurf.com/viladrich/astro/instrument/intrumentCaK/instrumentCak.html

Might effect any aspiring purchaser of front mounted ERF's though! ;) 

My honest, and somewhat painful opinion is, even though I don't dare to think about it, that I made practically as good images with my TS65Q and Quark than now with slightly more expensive 106ED, 110mm ERF and Quark.

Here's something taken today:

21052017_1500.jpg

My directions are messed though and need to fix that in next images..

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My directions are messed though and need to fix that in next images..

Depends where you are, could be right from somewhere :grin:
 
Dave
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