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First attempt at sketching: Sun 2011 mai 8

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#1 skoop

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Posted 12 May 2011 - 02:15 PM

Here is my first attempt at sketching.
Sun on Mai 8, 2011




Hardest part was the disk background. :)
At the bottom of the disk is a small paper defect that got darker.
I do not have a scanner so I took a photo, added the dark background in Gimp and adjusted the white balance so it resembles the color of paper.

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#2 cildarith

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Posted 12 May 2011 - 03:04 PM

Looks like a fine start. Thanks for sharing.

#3 Erix

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Posted 12 May 2011 - 04:03 PM

Very nice! It can be a little difficult to make out granulation in white light. the seeing and transparency have to be darned near perfect for it, especially at low aperture.

#4 Jef De Wit

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Posted 13 May 2011 - 08:07 AM

Really fine sketch! What magnification did you use?

#5 skoop

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Posted 13 May 2011 - 12:46 PM

I actually made a sketch of sunspots to my notepad just for fun while we had our first picnic of the year.

After that I decided to go to a art supplies store and buy some paper, 3 pencils and a stick of charcoal to see, can I actually do it by following Jeremy Perez instructions on June 2010 Astronomy Now.

Erix, I can actually see the surface but it is one of those mirage type of experiences. One moment it is there and then it is gone. :) "Granulation" on this drawing is actually a caused by the surface of the paper.

Jef De Wit, I used a 25mm EP and for sunspots 5mm Hyperion and 7.5mm TAL Plössl with 2x Barlow. I have a 90mm f/6.6 refractor.

I think I am hooked! Thank you Jeremy! ;)

#6 Special Ed

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Posted 13 May 2011 - 02:08 PM

Skoop,

That's nice work for a first try. :waytogo: What type of white light filter did you use?

#7 frank5817

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Posted 13 May 2011 - 07:44 PM

Skoop,

I like your white light sketch very much.
Just keep going and do what what works.

Frank :)

#8 Uwe Pilz

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Posted 14 May 2011 - 01:15 AM

The sketch shows well what happened at the sun ths day. Congratulation!. You may consider to add additional detail skecthes next time: You scope shows more than you can show in a whole disc.

#9 skoop

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Posted 14 May 2011 - 02:19 AM

Skoop,

That's nice work for a first try. :waytogo: What type of white light filter did you use?


I made my own filter from AstroSolarTM Safety film.

I made it 2 parts so I can replace or repair the filter in the holder. Filter disk is made of thick black velvet (flocking?) paper. patent pending ;)

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#10 skoop

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Posted 14 May 2011 - 05:37 AM

...You may consider to add additional detail skecthes next time: You scope shows more than you can show in a whole disc.


You are absolutely right. Here it is.
This is not the original but I redraw my rough sketch today.

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