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Uwe Pilz
super member
Reged: 05/16/08
Posts: 169
Loc: Leipzig, Germany
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Dear observers,
this night I had the chance to have a long look at the waning moon. Eventually I decided to sketch crater Janssen and surroundings. I used my 12 cm f/6 refractor @ 112x with dark green filter.
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Uwe Pilz from Leipzig, Germany. Astronomical pages (in german, but easy to navigate)
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frank5817
Post Laureate
Reged: 06/13/06
Posts: 4082
Loc: Illinois
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Uwe,
Great sketch. This really is a fun and interesting ancient crater to sketch. I really like the way you handled this old crater and all the more recent ones that came in on top of it.   
Frank 
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my gallery
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kraterkid
Post Laureate
Reged: 03/07/05
Posts: 4547
Loc: Jacumba, California
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Beautifully rendered view of Janssen Uwe. 
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Rich
My CN Gallery
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JayKSC
scholastic sledgehammer
Reged: 01/01/05
Posts: 973
Loc: Florida
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A nice rendition, Uwe. I especially like your careful attention to how the shadow details appeared. With your 12cm reflector, a filter of some sort is a must with the moon! My eyes get watery just thinking of viewing the moon with such a scope and no filter.
- Jay
South Florida
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Refractor manic. 
My Sketches
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Uwe Pilz
super member
Reged: 05/16/08
Posts: 169
Loc: Leipzig, Germany
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Jay,
I used this instrument because it is light. In the easter direction some trees hinder the view to the sky and I had to wander with my scope und to adjust the tripod.
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Uwe Pilz from Leipzig, Germany. Astronomical pages (in german, but easy to navigate)
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markseibold
Pooh-Bah
Reged: 01/19/08
Posts: 1081
Loc: Portland Oregon
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Quote:
Jay,
I used this instrument because it is light. In the easter direction some trees hinder the view to the sky and I had to wander with my scope und to adjust the tripod.
Uwe
Very nice field sketch of the crater Jannsen with environs receding in light at the waning phase. I really like the range of shading that you use and how you keep it loose and improvised appearing as at ease, never strained.
I also appreciate your having to "wander" with the telescope as I have had this problem many times. Oregon too has much in heavily covered terrain in trees.
Mark
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Tommy5
Carpal Tunnel
Reged: 03/28/04
Posts: 1821
Loc: Chicagoland
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Great sketch of the waning moon.
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CarlosEH
Post Laureate
Reged: 01/19/05
Posts: 4132
Loc: Pembroke Pines, Broward County...
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Uwe,
An excellent observation of Janssen. This is a complex and interesting crater. Thank you for sharing it with us all.
Carlos
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