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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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M52 is one of the famous open clusters that reside in the constellation Cassiopeia. It is a small but bright binocular object and easy to find. Just draw a line from Alpha Cas to Beta Cas and continue in the same direction for another 6°, until 4 Cas comes into view. Binoculars will show M52 as a small hazy spot just south of 4 Cas. M52 is so dense that only a few stars can be resolved at low power. I counted about 10 stars in a small cloud of star dust. The unresolved cloud appeared to display a dark wedge, running from the cluster’s lucida to the eastern edge of the cluster. The cluster’s true size is estimated to be around 16 to 20 l-y at a distance of 4,600 l-y.
The brightest star (above the cluster) in my sketch is the 5th magnitude 4 Cas.
Site : Bekkevoort, Belgium ( 51° N )
Date : October 22, 2008
Time : around 19.00UT
Binoculars : TS Marine 15x70
FOV: 4.4°
Filter : none
Mount : Trico Machine Sky Window
Seeing : 3/5
Transp. : 3/5
Sky brightness : 19.41 magnitudes per square arc second near zenith (SQM reading).
Nelm: 5.3
Sketch Orientation: N up, W right.
Digital sketch made with Corel Paint Shop Pro X2, based on a raw pencil sketch.
(Note: if the sketch does look too dark on your monitor, try to darken the room.)
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Rony
My Astronomical Sketches
My Binocular Sketches
Callibrate your Monitor with this little strip.
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frank5817
Post Laureate
Reged: 06/13/06
Posts: 4084
Loc: Illinois
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Rony,
Wow! This is a wonderful sketch. Beautiful capture of the faint star glow.    
Frank 
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my gallery
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markseibold
Pooh-Bah
Reged: 01/19/08
Posts: 1082
Loc: Portland Oregon
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Rony
Very realistic! I would like to see how the Corel process works to produce these images. Although I enjoy usng pastels, I am always open to learning a new art sketching process, even if computerized.
Thanks for sharing this,
Mark
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rolandlinda3
Carpal Tunnel
Reged: 01/24/06
Posts: 2233
Loc: Crozet VA 22932
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Wonderful work. And your getting these star fields is quite amazing to me. I like the object sketched, of course, but your ability to get these star fields so well is beyond me. Nice work.
Jim at Trico is looking at my suggestion, by the way, and says he intends to do a CAD drawing based on my sketch for an adapter to the upper arm of the sky window base so we can use the base for binocular correct image sketching near the horizon. If he follows through and gives me a few samples (that's what he says he will do) do you want to try one if he gives me more than one? Might be a month or two before he does it. Roland
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Roland
Sketches in members galleries: rolandlinda3
Inspirational stories/sketches at:
www.christworksministries.org
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keef
member
Reged: 12/27/06
Posts: 48
Loc: Derby, Derbyshire, UK
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As always Rony you have captured so much detail in your sketch - its really hats off to you could even be mistaken for a photo!!
Do you have a range of different brushes in Corel or very delicatly using the smudge and blend tools to make the glows mag and twinkle?
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Celestron 114EQ
CG-3
Pentax Optio M20 (P&S)
Canon 400D
Bressar 10x50
Revelation 15x70 (w/ Heavy duty 'L' adapter)
NexImage Solar System Imager
The GIMP (Image processing software)
Stellarium
My Site: http://www.derbyskywatcher.co.uk
Location: Derby, UK - Lat: 52.91N Lon: 1.47W
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Special Ed
Post Laureate
Reged: 05/18/03
Posts: 4287
Loc: Greenbrier Co., WV 38N, 80W
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Beautiful, delicate work, Rony.
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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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CarlosEH
Post Laureate
Reged: 01/19/05
Posts: 4132
Loc: Pembroke Pines, Broward County...
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Rony,
A beautiful and accurate observation of M52 in Cassiopeia. The stars in this open cluster appear to glow in your excellent rendering. Thank you for sharing it with us all.
Carlos
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WadeVC
Carpal Tunnel
Reged: 12/02/05
Posts: 2831
Loc: Lodi, California,
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Rony,
Your rendering of M52 is absolutely wonderful! It's as if I am actually looking through my binos at this wonderful Messier.
Nice!
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Orion XTi10 f/4.7
Orion XTi8 f/5.9
Meade NGC 70mm f/10
Orion UltraView 10x50 Wide-Angle Binoculars
My Sketch Gallery
My Astronomy Blog
A wise man can see more from the bottom of a well than a fool can from a mountain top.
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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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Thank you guys, for the positive feedback.
The key to the result is a well executed field-sketch. The brighter to medium to faint stars receive a brightness label. (The faintest stars remain unlabeled.) This is mandatory to achieve a proper dynamic range in the starfield of the digital sketch.
@ Keith : I used only 3 brushes for this 4-layered sketch (starpoint, halo and nebula), and the eraser. In case you wondered, these brushes are not available as such, I developped them myself with trial and error.
A small tutorial is in the making, if I ever find the time to continue it. 
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Rony
My Astronomical Sketches
My Binocular Sketches
Callibrate your Monitor with this little strip.
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