I LOVE finding out about different ways to appreciate the Sun and light in general. Use this forum to post your info or questions about various outside the mainstream ways to appreciate our life giving star!
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DSobserver
- Almost There...

- Posts: 531
- Joined: Sun Feb 19, 2012 2:36 pm
- Location: FRANCE
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by DSobserver » Sun Apr 23, 2017 5:23 pm
Many months I ddin't had time to use my SHG.
CaK
CaH
Ha
He
To be compare with soho magnetogram

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Montana
- Way More Fun to Share It!!

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- Joined: Mon Oct 17, 2011 5:25 pm
- Location: Cheshire, UK
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by Montana » Tue Apr 25, 2017 6:08 am
Wow!! eye popping images

nice active Sun too
Alexandra
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p_zetner
- Almost There...

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by p_zetner » Tue Apr 25, 2017 3:01 pm
Nice to see you back in action, Vincent. I hope to get my instrument running soon.
Good HeD3 capture. You may be able to reduce the image noise in this way: When you subtract the continuum image, scale it down in intensity to 90% or so before subtraction. I use ImageJ "Image > Process > Math > Multiply". You will get a trade-off between HeD3 feature contrast and noise. Experimentation required!
Cheers.
Peter.
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highfnum
- Almost There...

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by highfnum » Tue Apr 25, 2017 10:44 pm
nice to see others back in game
it was getting lonely
great shots
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marktownley
- Librarian

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Contact:
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by marktownley » Wed Apr 26, 2017 5:23 am
Interesting results!
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