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Astrophotography and Sketching >> Sketching

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Uwe Pilz
professor emeritus


Reged: 05/16/08
Posts: 729
Loc: Leipzig, Germany
Crater Janssen
      #3132652 - 05/28/09 04:41 PM Attachment (52 downloads)

Janssen is a very old crater form the pre Nectarian period. It is very battered from many younger craters. It's outline is only visible close to the terminator - like this evening.
In the monthes May and June the young moon can be observed in a very good position: High in the evening sky.

Jannsen showed lots of details. I tried to sketch as many as possibe in ~20 minutes. Some of the subtle detailed I failed sketching - shadows were moving to fast.

(120/600 refractor-112x)

Attachment

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Uwe Pilz from Leipzig, Germany. Astronomical pages (in German, but easy to navigate)


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frank5817
Postmaster


Reged: 06/13/06
Posts: 7212
Loc: Illinois
Re: Crater Janssen new [Re: Uwe Pilz]
      #3132908 - 05/28/09 07:01 PM

Uwe,

Getting the features on paper fast is the make or break step of a sketch near the terminator. It's like a game of beat the clock. I have sketches with impossible shadows because I took too long.
Your sketch here is excellent for a 20 minute sketch. Thank you for sharing it with us all.

Frank

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My Gallery


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CarlosEH
Postmaster


Reged: 01/19/05
Posts: 6714
Loc: Pembroke Pines, Broward County...
Re: Crater Janssen new [Re: frank5817]
      #3133043 - 05/28/09 08:30 PM

Uwe,

An excellent observation of Janssen showing a good amount of detail. Janssen is a complex crater and would be difficult to render in 20 minute but you have done a very good job. Thank you for sharing it with us all.

Carlos

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kraterkid
Post Laureate


Reged: 03/07/05
Posts: 4709
Loc: Jacumba, California
Re: Crater Janssen new [Re: CarlosEH]
      #3134756 - 05/29/09 07:10 PM

Alright Uwe! A wonderful sketch capturing so much of the detail in this complex crater. I love the way you dealt with the shadows. I was out observing Janssen the same night and your rendition is marvelous!

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Rich



My CN Gallery




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Sol
Carpal Tunnel


Reged: 08/20/07
Posts: 2111
Loc: Powys, Wales, UK
Re: Crater Janssen new [Re: kraterkid]
      #3136324 - 05/30/09 06:53 PM

A good sketch of that complex area Uwe, your technique has moved on a lot since you were posting in the solar forum.

Mark

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Visit the Sunnymeade Astro Solar Blog
http://sunnymeade.wordpress.com/


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rolandlinda3
Post Laureate


Reged: 01/24/06
Posts: 3140
Loc: Crozet VA 22932
Re: Crater Janssen new [Re: Uwe Pilz]
      #3136751 - 05/31/09 12:01 AM

that is a lot of work for 20 minutes. nice sketching. you could try some quick work with a blending stump or stick...I have tried that when I am in a hurry at the end of a sketch. It seems to help bring out a little more without much time added. Roland

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Roland
Blog: www.rolandlinda3.wordpress.com
Older sketches in Members Galleries (rolandlinda3)
For other sketches/inspirational stories: contact me via PM for information


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Uwe Pilz
professor emeritus


Reged: 05/16/08
Posts: 729
Loc: Leipzig, Germany
Re: Crater Janssen new [Re: rolandlinda3]
      #3136914 - 05/31/09 02:45 AM

I have used the belnding stump ... if the areas were smooth. In structured I left the paper structure.

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Uwe Pilz from Leipzig, Germany. Astronomical pages (in German, but easy to navigate)


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Dee
scholastic sledgehammer


Reged: 03/12/06
Posts: 806
Loc: Ireland
Re: Crater Janssen new [Re: Uwe Pilz]
      #3144961 - 06/04/09 04:52 AM

Lovely fresh look to your drawing, very clear .

Dee


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