20140118 4" SCT SHG Mosaic

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20140118 4" SCT SHG Mosaic

Post by Wah »

20140118 4" SCT SHG Mosaic

Not as straight forward as I thought, but still do-able.

H-alpha


H-beta


H-gamma


H-delta


Ca-H


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Re: 20140118 4" SCT SHG Mosaic

Post by marktownley »

Very very impressive results there Wah! 8)


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Re: 20140118 4" SCT SHG Mosaic

Post by swisswalter »

Hi Wah

a very fine result


Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

from 7 am - 7 pm http://www.nanosys.ch

from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa ;)
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Re: 20140118 4" SCT SHG Mosaic

Post by alex »

Very nice :thumbsup:


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Re: 20140118 4" SCT SHG Mosaic

Post by Montana »

:woohoo: your pictures are getting more amazing every minute :bow: :bow: :bow:

Alexandra


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Re: 20140118 4" SCT SHG Mosaic

Post by marktownley »

You sneaked some extra ones in from when I looked this morning! very nice! 8)


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Re: 20140118 4" SCT SHG Mosaic

Post by highfnum »

very nice
you can barely see stitching
is there algorithm to average edges?


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Re: 20140118 4" SCT SHG Mosaic

Post by Wah »

Dear highfnum, I haven't used special smoothing method to process the edge.
The only thing related to the edge is I show the original stitched image to the proms and outer part, and show FF processed solar disk at the center. It was because the outer part becomes very odd after applying FF division.


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Re: 20140118 4" SCT SHG Mosaic

Post by swisswalter »

Hi Wah


wonderful additions


Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

from 7 am - 7 pm http://www.nanosys.ch

from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa ;)
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Re: 20140118 4" SCT SHG Mosaic

Post by Wah »

Dear highfnum, maybe I have mis-understood your meaning previously.
To hide the stitching edge is the difficulty part of the processing.
I need to fine tune the brightness of each scan to match another one, there are 3 scans per solar disk. After the brightness adjustment, I will let the upper layer has feather transparency edge, so it won't be very obvious.
But you may still be able to find some of the edges of stitching, especially the H-gamma one.


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Re: 20140118 4" SCT SHG Mosaic

Post by Cschur »

Wah, these are simply magnificent! I have NEVER seen the sun displayed with such detail in so many hydrogen wavelengths. Can you show me a screen capture of your program in process? I'd love to see the intermediate steps.

Chris


Chris Schur

----------------------------------

Birch Mesa Observatory, Payson Arizona

Clear Creek Canyon Observatory, Happy Jack, Arizona
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Re: 20140118 4" SCT SHG Mosaic

Post by Wah »

Dear Cschur,

I will first capture some AVI videos of the spectrum while scanning the solar image on the slit.

Then using VirtualDub to crop and convert the files from Mono8 to a more common format.

And then use this program to merge the spectral line images:
http://solarchat.natca.net/index.php/en ... ram-update

After merging the spectral lines together, I use Photoshop to do the mosaic.


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Re: 20140118 4" SCT SHG Mosaic

Post by Wah »

Combine them into one picture~
And try to submit to APOD





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Re: 20140118 4" SCT SHG Mosaic

Post by Montana »

That would be a winner in my book :hamster: :hamster: :hamster:

Alexandra

PS let us know if you get it :)


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