13April SHG images: Sol in 4 lights.

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p_zetner
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13April SHG images: Sol in 4 lights.

Post by p_zetner » Tue Apr 19, 2016 9:12 pm

As promised, a few more images from my 13Apr observing session. The lovely AR12529 still front and centre!
(H beta is a little "ratty" as I, once again, was not careful about centering this spectral line in the field of view. Extra processing was required to compensate for very bad exposure.)
More data to process yet, so stay tuned.

Cheers.
Peter.
4Lights Montage siz.png

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Re: 13April SHG images: Sol in 4 lights.

Post by marktownley » Tue Apr 19, 2016 9:41 pm

Superb Peter! I'd love to see some 'sodium suns' if you can at any point. Very curious to see what is possible at this wavelength as it is within the passband of my HaT ERF. Daystar make a Na filter...
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Re: 13April SHG images: Sol in 4 lights.

Post by Merlin66 » Tue Apr 19, 2016 11:06 pm

Mark,
You'll probably find it's cheaper to build a "multi-wavelength", "multi-bandwidth" SHG than buy a dedicated Na filter!! ;-)
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Re: 13April SHG images: Sol in 4 lights.

Post by highfnum » Tue Apr 19, 2016 11:13 pm

HeD3 im jealous ;)

great shots
thx for your helpful remarks

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Re: 13April SHG images: Sol in 4 lights.

Post by p_zetner » Wed Apr 20, 2016 3:15 am

Thanks for your comments, everyone.

Mark: There's a sodium image here http://solarchat.natca.net/viewtopic.php?f=8&t=18063.

Truth be told, this image was taken slightly off band where,
I'm presuming, the Doppler effect played a role in the observed surface mottling. At the moment, I'm working up my 13April sodium data to produce a surface dopplergram. Unless you're working with a very narrow bandpass, I'd expect the sodium image to look like a continuum, white light image. I don't think that the Daystar filter offers such a narrow bandpass.

Cheers.
Peter.

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Re: 13April SHG images: Sol in 4 lights.

Post by Montana » Wed Apr 20, 2016 7:10 am

Wow!!! :bow :bow :bow

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Re: 13April SHG images: Sol in 4 lights.

Post by DSobserver » Wed Apr 20, 2016 9:10 am

Pffffff!
I'm jalous!


Great shot

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Re: 13April SHG images: Sol in 4 lights.

Post by Valtori » Wed Apr 20, 2016 1:48 pm

Very nice images in four lights!!

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Re: 13April SHG images: Sol in 4 lights.

Post by Carbon60 » Wed Apr 20, 2016 9:02 pm

Fabulous work, Peter.

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