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Crater Janssen

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#1 Uwe Pilz

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Posted 28 May 2009 - 03:41 PM

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)

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#2 frank5817

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Posted 28 May 2009 - 06:01 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. :waytogo:

Frank :)

#3 CarlosEH

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Posted 28 May 2009 - 07:30 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

#4 kraterkid

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Posted 29 May 2009 - 06:10 PM

Alright Uwe! :jump: 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! :waytogo:

#5 Sol

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Posted 30 May 2009 - 05:53 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

#6 rolandlinda3

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Posted 30 May 2009 - 11:01 PM

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

#7 Uwe Pilz

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Posted 31 May 2009 - 01:45 AM

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

#8 Dee

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Posted 04 June 2009 - 03:52 AM

Lovely fresh look to your drawing, very clear .

Dee






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