Solar 160921

[Merlin66]

The usual CaK - the AR is almost gone and the disk is quiet.
The MiniSHG - some interesting results.
1. The "usual" result of a 9sec scan tuned to the centre of Ha wavelength
2. Selecting a wavelength about 0.4A into the Ha wings
3. Selecting the Prom image from the scan (may be a little overexposed??!)
All these results from a 9sec scan. (much shorter than the conventional CaK exposure!!

4. The results of a 4 image stack (AS3!) I have to say, very impressive! Compare this with #1 above.

5. The above colourised - for fun.
I think a stack of even more images would give a excellent result.

Onwards and Upwards

Enjoy..

[Tropo-Bob]

Nice work Ken.

[Merlin66]

Bob,
Thanks mate.
I think until the new optics and slit arrive, the answer at the moment is to stack a few scan images to improve the results.

[N1]

Cool series. Yes, stacking will give an improvement, especially if the lines don't land in the same spot on each scan.

Well done

[Eris]

Quiet Sun or not your results continue to improve Ken. Perhaps you should consider getting into the market when all the i's are dotted and the t's are crossed.

[h0ughy]

Clouded out past week so good to see

[Merlin66]

Thanks guys, appreciated.
Gerard,
Interesting idea;);):thumbsup:

[multiweb]

That Cak full disk is awesome. :thumbsup:

[Derek Klepp]

Thanks Ken .A good cross section.