Sunday, October 9, 2011
An animation of DWB 111, the "Propeller Nebula", stars vs starless
The starless version shows the actual nebula. It's funny, how much details one can see from the nebula,
when all stars are removed. An experimental method used for star removal has become very accurate.
Note.
A starlike dot, in up center left, is a planetary nebula PK 79+5.1, a large bluish area,
to seven a clock direction from PK 79+5.1, is a possible planetary nebula PN PM 1-320.
This image was my first light for the Autumn season 2011.
Original blog post, with technical details, can be found from HERE.
Ps.
Above image of the Propeller Nebula, from Cygnus constellation, looks very much like a piece of marble tile bellow.
Friday, October 7, 2011
Sharpless 119 as a 3D stereo pair images
Parallel vision 3D
Cross vision 3D
Other 3D-formats:
Original 2D:
NOTE! This is a personal vision about forms and shapes, based on some known facts and an artistic impression.
Sharpless 199 as an anaglyph Red/Cyan 3D
3D-NOTE!
You'll need Red/Cyan Eyeglasses to be able to see images as 3D.
If you have a Red and Blue filters, you can use them! Red goes to Left eye.
As usually, I have turned the image of Sharpless 119, Sh2-119, to an experimental 3D-study.
As usually, I have turned the image of Sharpless 119, Sh2-119, to an experimental 3D-study.
Other 3D-formats:
Original 2D:
Thursday, October 6, 2011
Sharpless 119, Sh2-119
Sharpless 119
In constellation Cygnus, Ra 21h 18m Dec +44 00'
HST-palette, (HST=Hubble Space Telescope) from the emission of ionized elements,
R=Sulfur, G=Hydrogen and B=Oxygen.
R=Sulfur, G=Hydrogen and B=Oxygen.
Sharpless 119 is a largish emission nebula in constellation Cygnus. There are not too many images of it around due the close proximity of eye catchers, North America and Pelican Nebulae. Sh2-199 locates just three degrees East from the NGC 7000, North America Nebula. A bright magnitude 5 star 68 Cygni, can be seen at very center of the image above. There are several dark globules at the Southern part of the nebula.
This image covers about three degrees of sky, that's six full Moons side by side. There are some interesting looking structures in the nebula, straight line type of gas formations, they can be seen at Five and Six a clock positions, starting from image center to almost the edge of the image above.
Image is in Natural color palette from the emission of ionized elements,
R=Hydrogen + Sulfur, G=Oxygen and B=Oxygen + Hydrogen.
(Looks much like a "wide screen version" of the Rosette Nebula.)
Technical details:
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 33 iterations.
Levels, curves and color combine in PS CS3.
Optics, Tokina AT-X 300mm camera lens at f2.8
Camera, QHY9 Guiding, SXV-AO @ 6,5Hz
Image Scale, 3,5 arcseconds/pixel
Exposures H-alpha 10x1200s, binned 1x1O-III 3x1200s, binned 3x3
S-II 3x1200s, binned 2x2
Total exposure time ~5h
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