Thursday, October 30, 2008
Sh2-155, S-II channel added
I Managed to use two hours clear window to shot S-II
channel last night.
After that it's possible to make a real three colour narrowband composition.
Here precented as a Hubble palette, S-II = RED, H-a = GREEN and O-III = BLUE.
Imaging details are same, than in previous post,
just S-II information is added, 3 X 1200s.
Monday, October 27, 2008
Sh2-155, The Cave Nebula
"natural" color version
H-alpha
Version with reduced stars
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Last night I shot a new Sharpless catalog object, Sh2-155 in constellation Cepheus.
It's sometimes called the "Cave Nebula" doe the central formations shape,
I can't see the cave there though.
I shot three hours of H-alpha and one and half hours of O-III.
There is very litle of O-III there, but with extreme stretching of the data it was usable.
Image here is a narrowband color composition where H-alpha is Red and
O-III is Blue, Green color is synthesized from H-a and O-III channels.
There is three versions, first with "natural" colors and second with H-alpha only.
Third image is same color image but with reduced stars. The purpose of this image is
to show the nebulosity alone.
_
Imaging data:
Camera, QHY8
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Filters,
Baader 7nm H-alpha, Baader 8,5nm O-III and Baader
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Optics,
Tokina AT-X 300mm @ f2.8
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Exposures,
9X 1200s H-alpha, 4 X 1200 O-III + flats and bias
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Guiding,
LX200 GPS 12" + PHD-guiding and Lodestar
Sunday, October 26, 2008
Sh2-171
S-II, H-alpha and O-III as a Hubble palette
H-alpha, O-III, synthesized Blue as a "Natural" color
H-alpha
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Sh2-171 is an emission nebula in Cepheus.
I have shot few objects from the Sharpless catalog before, I find them interesting and
not too common as an imaging targets.
Here is three versions, first is a narrowband color version in Hubble palette,
second is a "natural" color version with synthesized green from H-alpha and O-III.
Third, black and white, is a hydrogen alpha channel only.
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Imaging data:
Camera,
QHY8
-
Filters,
Baader 7nm H-alpha, Baader 8,5nm O-III and Baader 8nm S-II
-
Optics,
Tokina AT-X 300mm @ f2.8
-
Exposures,
9X 1200s H-alpha, 3 X 1200 O-III and 3X1200s S-II + flats and bias
-
Guiding,
LX200 GPS 12" + PHD-guiding and Lodestar
Saturday, October 25, 2008
Friday, October 17, 2008
Veil Nebula, Supernova animation in stereo
This stereo animation shows the origin of the Veil Nebula.
(This time for parallel vision only, it might work for Cross Vision too.)
How to see this in stereo?
Please, look for istructions at right hand side menu.
Veil Nebula 3D + animation
Parallel Vision image
Cross Vision image
-
I tested GIF-animation in previous post.
This time I use it to add litle surprise to this stereo image.
Again, two versions. One for Parallel Vision method
and the other for Cross Vision.
-
Click the image to start, look at the image in stereo, after few
seconds something small going to happend.
Wednesday, October 15, 2008
Star removal technique
Star removal example animation (kilck to start)
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In narrowband color imaging star control is essential.
I have developed some time now starremoval technique.
It turned to be very accurate.
Please note, that this is a GIF-animation and image has a lower quality, than original.
Nebula in dense starfield can seen better without stars and
more faint details and large forms comes visible.
_
Images details, please, look previous posts.
Monday, October 13, 2008
The Heart & Soul in narrowband colors
This beautiful pair is located in Cassiopeia.
Real names are IC1848 and IC1805, but sometimes
they are called "Heart and Soul"
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Narrowband color image shows different areas in different colors.
Hydrogen can be seen as Green, Sulfur as Red and Oxygen as Blue.
_
Here is couple of links to the Wikipedia, if you like to know
more of those objects.
_
This image has a long and narrow shape becouse
Image is a two panel mosaic.
Unfortunatetly This Blog has a limit with image hight,
image here is a very small version of original high resolution one.
_
Imaging data:
Camera,
QHY8
-
Filters,
Baader 7nm H-alpha, Baader 8,5nm O-III and Baader 8nm S-II
-
Optics,
Tokina AT-X 300mm @ f2.8
-
Exposures, 14X 1200s H-alpha, 6 X 1200 O-III and 6X1200s S-II + flats and bias
(exposures are divided between both images in mosaic)
-
Guiding, LX200 GPS 12" + PHD-guiding and Lodestar
Heart & Soul, stereo pair
Parallel Vision image pair 
Cross Vision image pair For viewing istructions, please, look at the menu on the right hand side of the page. Sunday, October 12, 2008
IC1396 as a Stereo Image Pair
Cross Vision version Parallel Vision version
There is some 3D volume in stereo pair image.
It tels something about the "real" nature of those
objects, floating in the three dimensional Space.
This is an artistic visualization.
-
Viewing instructions, please, look at the Right hand side menu.
Saturday, October 11, 2008
IC 1396 in H-alpha & OIII light
The home of the famous "Elephants Trunk" Nebula, IC1396is an active
starformation area in Cepheus.After the Veil Nebula I shot 6x1200s trough H-alpha filter and then 3x1200s trough OIII filter. My goal is shoot SII channel as soon as possible and makea narrowband three color image. The Green channel is synthesized from O-III and H-alpha.
Imaging data:
Camera, QHY8
Filters,
Baader 7nm H-alpha and Baader 8,5nm O-III
Optics,
Tokina AT-X 300mm @ f2.8
Exposures,
7X 1200s H-alpha 8 X 1200 O-III + flats and bias - Guiding, LX200 GPS 12" + PHD-guiding and Lodestar
IC1396 in narrowband colors
Last night I shot S-II (Sulfur) channel for this nebula.
I previously shot H-alpha (Hydrogen) and O-II (Oxygen), you can see the image,
if you scroll few posts down.
This is a narrowband color composition with mentioned three pands.
Sulfur=Red, Hydrogen=Green and Oxygen=Blue
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Imaging data: Camera,
QHY8
- Filters, Baader 7nm H-alpha, Baader 8,5nm O-III and Baader 8nm S-II
- Optics, Tokina AT-X 300mm @ f2.8
- Exposures, 7X 1200s H-alpha, 8 X 1200 O-III and 3X1200s S-II + flats and bias
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Guiding, LX200 GPS 12" + PHD-guiding and Lodestar
Friday, October 10, 2008
Stereo Image Pair of Veil Nebula
Parallel Vision Version 
Cross Vision Version
- "True" nature of exploded stae can be seen in stereogram. Material has spred to the Space as a ball shape formation. Viewing instructions can be found on the right hand side menu.
Thursday, October 9, 2008
Veil Nebula in H-alpha & OIII light
Here is an image of leftovers of the massive star
explosion, Supernova.
Colors in image are close to real one, hydrogen is emitting Red
and Oxygen is emitting Blue/Green part of spectrum.
Green channel in image is synthesized from O-III and H-alpha.
Imaging data: - Camera, QHY8 - Filters, Baader 7nm H-alpha and Baader 8,5nm O-III - Optics, Tokina AT-X 300mm @ f2.8 - Exposures, 7X 1200s H-alpha 8 X 1200 O-III + flats and bias - Guiding, LX200 GPS 12" + PHD-guiding and Lodestar
Sunday, October 5, 2008
O-III Veil in 3D-stereo pair images
Since weather do not give any support, I played with a data I have.
Vei Nebula is a supernova remaint. Leftovers from massive explosion
have spred around space. This presentation shows again the "real" nature of this object.
Image is a false color, Blue, since O-III is located on the Blue/Green part of the spectrum.
Viewing instructions can be found from the right hand side menu.
Cross Vision version
Thursday, October 2, 2008
Veil Nebula in O-III light
Veil Nebula with O-III filter only.-
This is a start of the new project.
I will shoot The Veil Nebula in two color narrowband,
where O-III is Blue and H-alpha is Red, Green will be
synthesized from Red and Blue.
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Not a very good star though, at fist night (29.09.) I was able to shot
only three 20min. frames. Thats a way too litle for O-III light.
I'll shoot more , if weather up here ever permits it,
two more hours is needed here, I think.
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In the final image O-III will be precented as Blue color.
Tokina 300 AT-X @ f2.8, is a very good lens for this target,
the field of view is perfect march for the Veil.
_
Here is an image where stars are removed,
it's interesting to see how far the O-III area really goes.
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For more information about this object, please, go here:
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Imaging data:
-
Camera,
QHY8
-
Filters,
Baader 8,5nm O-III
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Optics,
Tokina AT-X 300mm @ f2.8
-
Exposures,
3 X 1200 O-III
+ flats and bias
-
Guiding,
LX200 GPS 12" + PHD-guiding and Lodestar
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