SHG shots : Ha, Cak & He

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DSobserver
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SHG shots : Ha, Cak & He

Post by DSobserver » Sat Sep 06, 2014 10:41 am

I think that finally everything is now ok with my SHG :


Ha
Image

Cak
Image

and first shot in He...
Image


...and in Hb!
Image
For the treatment, I found a really easy way to remove the lines : GIMP. I found an option to remove the trail. It works pretty fine here too (except in Hb...)!

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swisswalter
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Re: SHG shots : Ha, Cak & He

Post by swisswalter » Sun Sep 07, 2014 6:00 am

Hi Vincent

great results
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: SHG shots : Ha, Cak & He

Post by DSobserver » Sun Sep 07, 2014 6:34 am

thanks man!

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Re: SHG shots : Ha, Cak & He

Post by Wah » Sun Sep 07, 2014 11:24 pm

Why are the bands are not purely vertical or horizontal? I need to rotate the image 91.X degrees rather than 90 degrees. :roll: :roll: :roll:
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Re: SHG shots : Ha, Cak & He

Post by DSobserver » Mon Sep 08, 2014 11:27 am

because after your soft, the picture is little bit tilt of fiew degres.

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Re: SHG shots : Ha, Cak & He

Post by Wah » Mon Sep 08, 2014 4:35 pm

The tilt is not from the merging program, but from the orientation of the slit.
You may tilt vertical direction rather than horizontal direction, which can leave a chance to remove the bands by others :)

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Re: SHG shots : Ha, Cak & He

Post by DSobserver » Mon Sep 08, 2014 4:48 pm

previously I was using vertical orientation with same issue...

I don't say that the problem is coming from your (great) soft but most probably it's a common issue with SHG 'cuase is not the first time I saw similar issue on other website....

In fact it's maybe (even most probably) because my mount is not perfectly align on the north...Don't you think?

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Re: SHG shots : Ha, Cak & He

Post by marktownley » Mon Sep 08, 2014 8:16 pm

What fantastic shots! I like them a lot!
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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!

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Re: SHG shots : Ha, Cak & He

Post by Wah » Tue Sep 09, 2014 8:42 am

As I said in my last reply, the tilt problem should be from the orientation of the slit. The slit has to be perfectly aligned to Earth North-South direction, or else it will introduce some tilt.

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