Monday, October 12, 2009
NGC 6888, Reprocessed
I reprocessed image of NGC 6888.
Colors are now more vivid and details are even more visible.
Original images and imaging details can be found here:
-
Sunday, October 11, 2009
New project, The Tulip Nebula
I have started a new project with a Sh2-101, the Tulip Nebula.
So far, from three nights, I have only four twenty minutes exposures. Weather has been very volatile up here.
I will shoot more H-alpha and other channels for this object later.
-
Two color chemes, HST Palette as S-II=Red, H-a=Green and O-III=Blue.
Second image is in natural colors composed from narrowband data.
Channels are balanced so, that image match to visible spectrum,
H-a + 24%S-II=Red, O-III=Green and O-III + 15%H-alpha=Blue.
-
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations.
Levels, curves and color combine in PS CS3.
Telescope, Meade LX200 GPS 12" @ f4.65
Camera, QHY9 Guiding, SXV-AO @ 11Hz
Exposures:
H-alpha 4x1200s Binned 1x1
Color information is taken from much wider fiels image of Tulip Nebula.
Wednesday, October 7, 2009
The Bubble Nbula as a Stereogram
Parallel Vision, HST-palette 
Cross Vision, HST-palette 
Parallel Vision, Natural-palette 
Cross Vision, Natural-palette
- NOTE!
This is a personal vision about forms and shapes, based on some known facts and artistic impression.
Wieving instructions can be found from a Right hand side menu.
-
Original Image with details can be found HERE.
Sunday, October 4, 2009
Bubble Nebula finalized
Now I have data for all the channels, H-alpha, S-II and O-III.Even though signal from S-II was very weak it was clearly there, I managed to balance it with stronge channels.
-
Two color chemes, HST Palette as S-II=Red, H-a=Green and O-III=Blue.
Second image is in natural colors composed from narrowband data.
Channels are balanced so, that image match to visible spectrum,
H-a + 24%S-II=Red, O-III=Green and O-III + 15%H-alpha=Blue.
-
Processing work flow: Image acquisition, MaxiDL v5.07. Stacked and calibrated in CCDStack. Deconvolution with a CCDSharp, 30 iterations. Levels, curves and color combine in PS CS3. - Imaeged in three nights between 27.09 - 04-09 2009, seeing varys between 4-2,5 FWHM - Telescope, Meade LX200 GPS 12" @ f4.65 Camera, QHY9 Guiding, SXV-AO @ 11Hz
Exposures:
H-alpha 21x1200s Binned 1x1 = 7h
S-II 10x600s Binned 3x3
O-III 5x600s Binned 3x3
-
Here is a total captured Field of View, image size is about 3500 x2300 pixels.
Image turned to be a very high resolution one. Image scale is 0.8 arc seconds/pixel.
Seeing wasn't that good (2,5 FWHM at best) but slightly oversampled image is very good for Deconvolution algorithms. After deconvolution the FWHM was 1.9.
Subscribe to:
Posts (Atom)
