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Sun in continuum (May 1, 2)

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#1 Ernest_SPB

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Posted 05 May 2013 - 01:02 PM

This Sun was observed in Sky Watcher ED80/600 + 12 mm Radian (50x) + film Astrosolar (photo) + OIII Astronomik and sketched by pencil on May, 1 15UTC. Then the picture was scanned and processed in Paint.NET (including false coloring).

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#2 Ernest_SPB

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Posted 05 May 2013 - 01:04 PM

Another day Sun observed in the same telescope.
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#3 frank5817

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Posted 05 May 2013 - 02:06 PM

Ernest,

Fine sketches of a spot covered sun.

Frank :)

#4 Laurent Ferrero

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Posted 05 May 2013 - 02:58 PM

Fine sketches, very realistic !

#5 niteskystargazer

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Posted 06 May 2013 - 09:37 AM

Ernest,

Very nice sketch of the Sun May 1 & 2 :cool:.

CS,KLU,

:thanx:,

Tom

#6 Jef De Wit

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Posted 06 May 2013 - 10:31 AM

OIII on the sun? How does it help?

#7 Ernest_SPB

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Posted 08 May 2013 - 12:34 AM

I use solar filter made from Baader Astrosolar film (photo edition). It produces bright image of Sun and requires additional filtering. Normally I use neutral 1.25" Moon filter, sometimes dense color filters, but recently found that narrow OIII filter (Astronomik) provides image of Sun surface with better resolution. I can catch granulation pattern, filaments in shadow of spot. I guess it filters out rest of chromatic aberrations of my ED-doublet.

#8 PeterDob

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Posted 08 May 2013 - 03:37 AM

Superb drawings, Ernest! Absolutely wonderful! I too was amazed when I read that you're also using an OIII filter. But seeing your explanation it makes sense indeed. :D I hope to see a lot more of your work!

Peter


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