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Astrophotography and Sketching >> Sketching

Pages: 1
Jef De Wit
Carpal Tunnel


Reged: 03/06/09

Loc: Hove, Belgium
Craters Berosus and Hahn
      #3537457 - 01/03/10 03:50 PM Attachment (61 downloads)

Another moonsketch with my little refractor (7cm). I'm beginning to like sketching the moon! The shading didn't work out well and the 3D-feeling is absent. But I hope you like it anyway.

1/1/2010, 20.15-21.45 UT, ETX-70 @ x150, everage seeing, waning moon 98%, moon altitude was (only) 35°, white and black pencil on black paper, blending with a cotton swab, scanned and mirrored, eyepiece-sketch no processing

Edited by Jef De Wit (01/03/10 03:54 PM)


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frank5817
Postmaster
*****

Reged: 06/13/06

Loc: Illinois
Re: Craters Berosus and Hahn new [Re: Jef De Wit]
      #3538101 - 01/03/10 10:23 PM

Jef,

You are wrong, the 3-D effect is very good. 70 mm is certainly a big enough eye to get a great view like you have captured here.

Frank


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JayKSC
Carpal Tunnel
*****

Reged: 01/01/05

Loc: Florida
Re: Craters Berosus and Hahn new [Re: Jef De Wit]
      #3538128 - 01/03/10 10:38 PM

Jef,

I definitely get a 3D effect, especially with the ridges outside of the craters. Despite the mere average seeing you report, this is a fine view and a great sketch.

Just a comment - the lunar surface can be addicting. I've tried sketching it a few times and loved it. As a deep sky observer, I traditionally see the moon something to dread. Last night, though, after straining to see M79 in my skies (with the moon out), I took a quick look at the moon. Wow! What detail! I think I avoid the moon and concentrate on deep sky targets because the moon is so daunting a target!

Jay
South Florida


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Uwe Pilz
scholastic sledgehammer


Reged: 05/16/08

Loc: Leipzig, Germany
Re: Craters Berosus and Hahn new [Re: JayKSC]
      #3538393 - 01/04/10 02:42 AM

Impressive image! Very realistic 3d-view indeed.

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CarlosEH
Postmaster
*****

Reged: 01/19/05

Loc: Pembroke Pines, Broward County...
Re: Craters Berosus and Hahn new [Re: Uwe Pilz]
      #3538994 - 01/04/10 01:37 PM

Uwe,

An excellent observation of Berosus and Hahn. I also like the 3-D effect of the observation. Thank you for sharing it with us all.

Carlos


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Jef De Wit
Carpal Tunnel


Reged: 03/06/09

Loc: Hove, Belgium
Re: Craters Berosus and Hahn new [Re: CarlosEH]
      #3539063 - 01/04/10 02:24 PM

Thanks for the kind words to you all!

@Jay: When I look with my 12" to the Moon, I don't even thinks about sketching what I see! Too much is too much! So I sketch the Moon with my old ETX-70 (that's difficult enough) and look at deepsky with my 12" dobson. A question of not discriminating my two telescopes


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JayKSC
Carpal Tunnel
*****

Reged: 01/01/05

Loc: Florida
Re: Craters Berosus and Hahn new [Re: Jef De Wit]
      #3539068 - 01/04/10 02:27 PM

Jef,

With how bright the moon can be in my little refractor, I can't imagine what the view would be in a 12-inch scope. Years ago I had a 10-inch reflector and recall the moon being so bright that I had to use a deep blue color filter to cut down on the brightness in order to observe. One nice thing about the moon, though, is that it certainly holds up against all light pollution!

- Jay
South Florida


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Jef De Wit
Carpal Tunnel


Reged: 03/06/09

Loc: Hove, Belgium
Re: Craters Berosus and Hahn new [Re: JayKSC]
      #3539082 - 01/04/10 02:38 PM

Jay

I have only a UHC-filter... and the Moon IS bright in a 12". But if you look at x300 (near the terminator) the brightness is no problem anymore. But bye bye nightsight!


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ericj
professor emeritus


Reged: 02/17/05

Re: Craters Berosus and Hahn new [Re: Jef De Wit]
      #3567085 - 01/17/10 08:05 PM

Jef,

Very impressive sketch with your 7cm refractor. I think you captured the 3D effect very well.

Clear Skies,

Eric Jamison


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markseibold
Carpal Tunnel


Reged: 01/19/08

Loc: Portland Oregon
Re: Craters Berosus and Hahn new [Re: Jef De Wit]
      #3567774 - 01/18/10 05:54 AM

Jef

Very nice sketch of craters Berosus and Hahn.

I enjoyed and appreciated your intention to capture some three-dimensional rendering and it shows! Amazing the way you are seeing good detail with your small aperture scope, however I also agree with you about the larger aperture to see greater detail and when used at higher magnification, the blinding light is diminished. I only use my 10.1 inch f/4.5 Dobsonian Newtonian for lunar sketching at higher magnification now.

I look forward to seeing your next observation and sketching.

Mark


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rolandlinda3
Post Laureate
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Reged: 01/24/06

Loc: Crozet VA 22932
Re: Craters Berosus and Hahn new [Re: Jef De Wit]
      #3568031 - 01/18/10 10:05 AM

Looks good and 3D to me. Keep them coming.

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