13Aug SHG: 3rd and final installment.

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p_zetner
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13Aug SHG: 3rd and final installment.

Post by p_zetner » Mon Aug 24, 2015 6:49 pm

Hello Everyone.

A final presentation of the 13Aug solar disk observed in four more wavelengths: a molecular band of CN (cyanogen radical) at 388.9 nm, and three (neutral) metal lines; Al at 396.1 nm (inspired by "highfnum" !), Ca at 422.7 nm and Mg at 518.4 nm. The contrast of these could probably be improved with wiser gamma settings in the future. I may have over-adjusted gamma to brighten the image somewhat in the dark line centres.

There's a notable trend of increasing "chromospheric" appearance of the solar disk as wavelength shortens to the violet. Sunspots (photospheric features) are strongly visible in the Mg image but progressively harder to see going through the series to the CN image. Maybe this trend is consistent with the fall-off of photospheric intensity with decreasing wavelength. Chromospheric features are swamped by photospheric light at longer wavelengths but less so in the violet.

Cheers.
Peter.
4line Mosaic Pt2 proc frm sz lbls.png

Derek Klepp
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Re: 13Aug SHG: 3rd and final installment.

Post by Derek Klepp » Mon Aug 24, 2015 9:30 pm

Thanks Peter

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Re: 13Aug SHG: 3rd and final installment.

Post by highfnum » Mon Aug 24, 2015 11:50 pm

cool
Al shot too!

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DSobserver
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Re: 13Aug SHG: 3rd and final installment.

Post by DSobserver » Wed Aug 26, 2015 10:23 am

really nice

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Re: 13Aug SHG: 3rd and final installment.

Post by marktownley » Mon Aug 31, 2015 8:39 pm

Impressive!
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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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