Thursday, November 10, 2011
Cirrus of Cygnus, start of the new project
A Hydrogen alpha filtered monochrome image of thin, cirrus like, filaments from an edge of large emission area in constellation Cygnus.
I have started a new imaging project. This time I will shoot a three panel panoramic mosaic since I like to show a whole network of thin filaments at edge of Cygnus emission nebula. This image spans about 12 degrees horizontally... that's 24 full Moons side by side. I will shoot all three emission channels for this, when ever my local weather let me do so...
The "Propeller Nebula" can be seen at bottom center Left. HERE is an image of it from this Autumn and colors of it will give a hint, how this new image going to look when ready.
The "Propeller Nebula" can be seen at bottom center Left. HERE is an image of it from this Autumn and colors of it will give a hint, how this new image going to look when ready.
An experimental starless version
Same image with suppressed stars to show the actual nebula complex better.
It's funny to see, how much more details can be seen in nebula by this way, even though stars in original image are absolute pinpoints.
A starless closeup reveals some details
Very odd looking loops in filaments... One at lower Left looks like a lasso.
It's funny to see, how much more details can be seen in nebula by this way, even though stars in original image are absolute pinpoints.
A starless closeup reveals some details
Technical details:
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 50% weight
Levels, curves and color combine in PS CS3.
Optics, Canon EF 200mm camera lens at f1.8
Camera, QHY9
Guiding, Meade LX200 GPS 12" and a Lodestar guider
Image Scale, ~5 arcseconds/pixel
Filter, Baader 7nm H-alpha
Exposures for three panels, from Left to Right
Panel 1, 8x900s Binned 1x1
Panel 2, 4x900s Binned 1x1
Panel 3, 5x 900s Binned 1x1
Wednesday, November 9, 2011
IC405 & 410
IC 405 & 410
In constellation Auriga
HST-palette, from the emission of ionized elements,
R=Sulfur, G=Hydrogen and B=Oxygen.
An experimental starless version to show the actual nebula
An experimental starless version to show the actual nebula
A clear night at last!
I shot about three hours of H-alpaha light for IC405 & 410, after finalizing H-a for my new project , "Cirrus of Cygnus". (It will be a three panel narrow band mosaic about dimmer outer structures of Cygnus Nebula complex.)
Little by little I have managed to reduce tilt between my CCD and the Cnon EF 200mm f1.8 lens.
At f1.8, every single micron makes a big difference. Working with an extreme fast lens, like this, is very demanding. Tolerances are very small, the critical focus zone is only 7microns, that's 7/1000mm!
Little by little I have managed to reduce tilt between my CCD and the Cnon EF 200mm f1.8 lens.
At f1.8, every single micron makes a big difference. Working with an extreme fast lens, like this, is very demanding. Tolerances are very small, the critical focus zone is only 7microns, that's 7/1000mm!
Other channels, O-III and S-II are taken from an older image from year 2008. Star colors are borrowed from an RGB-image, shot at 2007.
R=Hydrogen + Sulfur, G=Oxygen and B=Oxygen + Hydrogen.
An animated image to show the nebula with and without stars.
Technical details:
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 50% weight
Levels, curves and color combine in PS CS3.
Optics, Canon EF 200mm camera lens at f1.8
Camera, QHY9
Guiding, Meade LX200 GPS 12" and a Lodestar guider
Image Scale, ~5 arcseconds/pixel
New exposures H-alpha 13x900s,
S-II and O-III information are from an older image
Monday, October 31, 2011
Veil Nebula as a Stereo pair 3D-study
Other 3D-formats:
Original 2D:
NOTE! This is a personal vision about forms and shapes, based on some known facts and an artistic impression.
Veil Nebula 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.
Original 2D:
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