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Astrophotography and Sketching >> Sketching

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Special Ed
Postmaster
*****

Reged: 05/18/03

Loc: Greenbrier Co., WV 38N, 80W
H alpha Solar Sketch 19 Feb. 2011 new
      #4398219 - 02/19/11 10:36 PM

Hi Folks,

After doing a graphite white light full disk sketch of the Sun, I switched gears and did this hydrogen alpha sketch. Observing report is with the sketch.

I switched media, too, going from graphite on white paper for the white light sketch to conte' crayon on black Artagain paper for the Ha sketch. I also used Derwent white Graphtint and white watercolor pencils. For blending, I employed a stump, a cloth and my finger.

Conte' is messy--I kept blowing off the excess material. You just have to be careful you don't spit all over your drawing.

I'm still learning--feedback and criticism welcome.


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frank5817
Postmaster
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Reged: 06/13/06

Loc: Illinois
Re: H alpha Solar Sketch 19 Feb. 2011 new [Re: Special Ed]
      #4398385 - 02/20/11 12:15 AM

Michael,

A super looking sketch. I don't think you need any help at all, my only criticism is that it looks beautiful - a positive criticism for certain.

Frank


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Tommy5
Carpal Tunnel


Reged: 03/28/04

Loc: Chicagoland
Re: H alpha Solar Sketch 19 Feb. 2011 new [Re: frank5817]
      #4398393 - 02/20/11 12:19 AM

very nice sketch, lots of detail, it looks like the sun has finally woke up.

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Special Ed
Postmaster
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Reged: 05/18/03

Loc: Greenbrier Co., WV 38N, 80W
Re: H alpha Solar Sketch 19 Feb. 2011 new [Re: Tommy5]
      #4399203 - 02/20/11 12:07 PM

Frank, Tommy--thank you very much. The little PST is a good performer, even when conditions are less than perfect. Good transparency (which I enjoyed) is a must with the PST in order to see a lot of detail, in my experience.

Frank, you're too kind. I basically try to do what Erika does with her Ha sketches, but she has a whole lot more practice than I do. The next thing is to learn how to make the solar "surface" appear to swirl around the active regions as it appears in the eyepiece.

I forgot to mention in my op that I also used a charcoal pencil to render the sunspots and the thin black active region filament (ARF).


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TenthEnemy
scholastic sledgehammer


Reged: 01/21/08

Loc: Maryland
Re: H alpha Solar Sketch 19 Feb. 2011 new [Re: Special Ed]
      #4400056 - 02/20/11 06:58 PM

Nice sketch, you captured more surface features than I did. I think we caught all the same proms.

Quote:

The next thing is to learn how to make the solar "surface" appear to swirl around the active regions as it appears in the eyepiece.




I hope you won't keep that knowledge secret if you ever figure it out.


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Special Ed
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Reged: 05/18/03

Loc: Greenbrier Co., WV 38N, 80W
Re: H alpha Solar Sketch 19 Feb. 2011 new [Re: TenthEnemy]
      #4402172 - 02/21/11 06:07 PM

Quote:

Nice sketch, you captured more surface features than I did. I think we caught all the same proms.




10th, yes I believe our sketches compare favorably.

Quote:

The next thing is to learn how to make the solar "surface" appear to swirl around the active regions as it appears in the eyepiece.




Quote:

I hope you won't keep that knowledge secret if you ever figure it out.




Hopefully, Erika will drop by the forum and enlighten us both. Or we can read her book.

I put together this side by side comparison of the views in H alpha and white light. The phrase "more than meets the eye" comes to mind.


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Special Ed
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Reged: 05/18/03

Loc: Greenbrier Co., WV 38N, 80W
Re: H alpha Solar Sketch 19 Feb. 2011 new [Re: Special Ed]
      #4418512 - 03/01/11 06:19 AM

Carlos was kind enough to put together this colorized version of my Feb. 19th observation.

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frank5817
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Reged: 06/13/06

Loc: Illinois
Re: H alpha Solar Sketch 19 Feb. 2011 [Re: Special Ed]
      #4427660 - 03/05/11 10:46 AM

Michael,

No doubt about it, Carlos is a very talented fellow.

Very nice.

Frank


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