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22/04 SUN SHG lights
Posted: Sun Apr 23, 2017 5:23 pm
by DSobserver
Many months I ddin't had time to use my SHG.
CaK
CaH
Ha
He
To be compare with soho magnetogram
Re: 22/04 SUN SHG lights
Posted: Tue Apr 25, 2017 6:08 am
by Montana
Wow!! eye popping images
nice active Sun too
Alexandra
Re: 22/04 SUN SHG lights
Posted: Tue Apr 25, 2017 3:01 pm
by p_zetner
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.
Re: 22/04 SUN SHG lights
Posted: Tue Apr 25, 2017 10:44 pm
by highfnum
nice to see others back in game
it was getting lonely
great shots
Re: 22/04 SUN SHG lights
Posted: Wed Apr 26, 2017 5:23 am
by marktownley
Interesting results!
