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dfell
professor emeritus
Reged: 06/25/05
Posts: 577
Loc: Wetaskiwin, Alberta, Canada
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Good seeing this frosty morn, with a little ice haze, something going on with the NPH/cap. It's really nice when all the gear works perfectly in the cold.
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www.spacealberta.com
12" collapsible Dob
25" Round Table Platform
Ethos 13mm
original TV smoothside plossls
80mm f/15 Towa Refractor
PST
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Dean Norris
sage
Reged: 11/05/08
Posts: 423
Loc: Santa Cruz, Ca
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Denis, Great sketch of Mars. Lots of detail. Do you have your telescope in an observatory? I'm assuming that you get up early in the morning rather than staying up all night. With a scope in an observatory it would be close to the ambient air temperature. otherwise you would have to get earlier to have enough cool down time.
Dean
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1971 10" Cave Newtonian F/6
MoonLite CR Focuser Telrad Finder 8x50 finder
TV 40mm, 32, 20, 7.4, Meade 6mm, UO 5mm, Meade 2x Barlow
7x50 Binoculars
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dfell
professor emeritus
Reged: 06/25/05
Posts: 577
Loc: Wetaskiwin, Alberta, Canada
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Actually the scope lives in an unheated garage under it's Telegizmos cover with mirror and end covers, usually it's only a few degrees above ambient and I run the fan during collimation checks and aligning the platform. This morning I got up at 0330 and was setup by 0410, I then observed, sketched, and imaged until 0600. As the apparition progresses, I will be getting up later until Mars becomes a middle of the night to evening object. My patio happens to be in a nice dark spot and I have understanding neighbours who keep their floodlights off.
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www.spacealberta.com
12" collapsible Dob
25" Round Table Platform
Ethos 13mm
original TV smoothside plossls
80mm f/15 Towa Refractor
PST
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RLTYS
Carpal Tunnel
Reged: 12/18/04
Posts: 2141
Loc: New York (Long Island)
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dfell
An excellent sketch, thanks for the view.
Rich (RLTYS)
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10" F4.8 Refl.
4" F5 Refr. (Genesis)
3" F4 Celestron FirstScope
50mm F12 Refr. (Tasco #6TE-5)
12x63 and 10x50 Binoculars.
"I want to do more then just look."
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Rick Woods
Postmaster
Reged: 01/27/05
Posts: 5648
Loc: Inner Solar System
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Good sketch!
You caught Huygens crater there, just under Mare Serpentis; and also Lacus Moeris sticking out the left of Syrtis Major.
I've only found Huygens definitely on one of my sketches, done with an 8" newtonian when Mars was much closer in 2005. Very impressive that you bagged it at this distance!
I also notice that the terminator is uneven. Is that because you sketched it freehand, or were you actually seeing it that way?
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- Rick
14" LX200GPS
83% of all statistics are meaningless.
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dfell
professor emeritus
Reged: 06/25/05
Posts: 577
Loc: Wetaskiwin, Alberta, Canada
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Thanks all, the terminator is uneven because my hands were cold at the time, I do not as a rule rework my sketches after observing, too easy to add what you thought you saw, I am trying to stay as objective as possible. 
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www.spacealberta.com
12" collapsible Dob
25" Round Table Platform
Ethos 13mm
original TV smoothside plossls
80mm f/15 Towa Refractor
PST
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Special Ed
Post Laureate
Reged: 05/18/03
Posts: 4282
Loc: Greenbrier Co., WV 38N, 80W
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I've been away from the forum--excellent sketch, Denis--nice images, too!
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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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dfell
professor emeritus
Reged: 06/25/05
Posts: 577
Loc: Wetaskiwin, Alberta, Canada
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Thanks, conditions have been quite variable which affects the image with a still small disk.
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www.spacealberta.com
12" collapsible Dob
25" Round Table Platform
Ethos 13mm
original TV smoothside plossls
80mm f/15 Towa Refractor
PST
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