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Kris.
Pooh-Bah
Reged: 09/16/04
Posts: 1276
Loc: Belgium
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Here’s a quick sketch of mars from two days ago, i had both my 8” and 12” scopes set up, to see how they would perform. Unfortunately the seeing was poor to very poor, so i don’t think it’s fair to judge the performance right now.
First thing i noticed was that the contrast between dark and lighter areas on mars is actually even fainter, makes sense i suppose because the 12” gathers twice as much light then the 8”.
In these bad seeing conditions, i could not see more detail on mars with the 12” then in the 8”, so i’ll have to wait for a real comparison!
Very little detail visible on the disk, the few things that i could see were sinus sabaeus and syrtis major on the preceding limb. Also south of sinus sabaeus there was a streak visible, i guess it’s either Noachis or Hellespontus, (i think Carlos will provide the right answer  )
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Kris
To be old & wise, you first gotta be young & stupid 
8" dob
AstroTech 66ED/APO
TAL 120 newt.
my CN sketch & picture gallery
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frank5817
Post Laureate
Reged: 06/13/06
Posts: 4084
Loc: Illinois
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Kris,
Very impressive sketch. Considering your poor seeing conditions you did very well.  
Frank 
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my gallery
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rolandlinda3
Carpal Tunnel
Reged: 01/24/06
Posts: 2233
Loc: Crozet VA 22932
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Your results don't surprise me. The aperture gain will be more noticeable on deep sky objects or details on the moon where the objective area fills the field of view. Planets will show a more modest increase in detail (at least that is what happens to me) but the color is enhanced (function of light gathering that reaches your eye). Have fun. Using the Denks??
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Roland
Sketches in members galleries: rolandlinda3
Inspirational stories/sketches at:
www.christworksministries.org
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Special Ed
Post Laureate
Reged: 05/18/03
Posts: 4296
Loc: Greenbrier Co., WV 38N, 80W
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Kris,
Nice sketch of your eyepiece view. I think the dusky albedo south of Sabbaeus Sinus is Hellespontus.
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Michael Rosolina
8" f/10 Orange Tube SCT
4.25" f/4.2 Astroscan Reflector
SVP 3.6" f/13.6 CA Reflector
40mm PST f/10
APM Germany HD 15x70 binoculars
Canon 12x36 IS II binoculars
Mark I Eyeball
My CN Gallery
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Kris.
Pooh-Bah
Reged: 09/16/04
Posts: 1276
Loc: Belgium
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Frank, Roland & Michael: thanks for the nice comments.
Roland, it's good you ask, perhaps you can help me, i'm having some troubles using the denks on small object (= Mars  ) see this link where i posted my question. (down at the bottom)
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Kris
To be old & wise, you first gotta be young & stupid
8" dob
AstroTech 66ED/APO
TAL 120 newt.
my CN sketch & picture gallery
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Tommy5
Carpal Tunnel
Reged: 03/28/04
Posts: 1821
Loc: Chicagoland
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Very nice sketch of Mars, nice detail for such a tiny object.
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rodelaet
Post Laureate
Reged: 04/28/06
Posts: 3063
Loc: 50°56' N - 4°58' E (Belgium)
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Beautiful sketch, Kris!
I'm impressed with the details on that tiny disk.
You made a good start for the coming opposition.
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Rony
My Astronomical Sketches
My Binocular Sketches
Callibrate your Monitor with this little strip.
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