Helium D3 07/04/23

Alun_H · Post by **Alun_H** » Sat Apr 08, 2023 6:30 am

My very first attempt at the Helium D3 line using the 72ED and Sol'Ex SHG. Using Valerie Desnoux INTI free line routine to reconstruct the image I then used Photoshop CS2 to flip/rotate to correct orientation and try to remove some of the noise.

Alun

: _16_01_43Z_b.jpg (178.77 KiB) Viewed 1166 times

Post by **Montana** » Sun Apr 09, 2023 5:10 pm

Very nice indeed

do you know what is causing the horizontal lines?

Alexandra

Alun_H · Post by **Alun_H** » Mon Apr 10, 2023 11:20 am

Thank you Alexandra. I think these lines are artifacts left after the subtraction of the continuum image,I played around with the Polynomial settings in INTI and these lines would change position but then the contrast in the image would drop as the shift would pull it off band. Need to do more Helium D3 imaging to learn more about using INTI free line and its proper settings.

Alun

highfnum · Post by **highfnum** » Mon Apr 10, 2023 11:29 am

very nice
can you write up steps to do this with link to needed SW?

highfnum · Post by **highfnum** » Mon Apr 10, 2023 11:29 am

plz with strawberries and sugar on top!

Alun_H · Post by **Alun_H** » Mon Apr 10, 2023 11:47 am

Thank you John.

INTI software and PDF download giving complete instructions on Helium D3 http://valerie.desnoux.free.fr/inti/ http://valerie.desnoux.free.fr/inti/INT ... mD3_EN.pdf

Alun

Helium D3 07/04/23

Helium D3 07/04/23

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