Thursday, February 3, 2011
M27, the "Dumbbell Nebula", as a Stereo Pair 3D
3D-experiment with the M27
Parallel vision 3D
Cross vision 3D
NOTE! This is a personal vision about forms and shapes, based on some known facts and an artistic impression.
M27, the "Dumbbell Nebula", as an anaglyph Red/Cyan 3D
You'll need Red/Cyan Eyeglasses to be able to see this image right.
Note, if you have a Red and Blue filters, you can use them! Red goes to Left eye.
A closeup
NOTE! This is a personal vision about forms and shapes, based on some known facts and an artistic impression.
Wednesday, February 2, 2011
M27, the "Dumbbell Nebula", reprocessed
Since my processing technique gets better and weather doesn't give any support, I have reprocessed some older images. There is now star colors added and other processing is tweaked too.
Messier 27, the "Dumbbell Nebula"
Ra 19h 59m 36.340s Dec +22° 43′ 16.09″
Be sure to click to an image to see it in large size!
Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission. This composition is very close to a visual spectrum.
Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission. This composition is very close to a visual spectrum.
The Dumbbell Nebula (also known as a Messier 27, M 27, or NGC 6853) is a planetary nebula in the constellation Vulpecula, at a distance of about 1360 light years. It has a large angular diameter as a planetary nebula, about 8 x 5,6 arc minutes. (Rarely imaged outer halo is not included, it can be seen in my image. With an outer shell, the diameter is over 15'' (more than a size of the half a Moon))
Planetary nebulae are shells of gas shed by stars late in their life cycles after using up all of their nuclear fuel. The star then ejects a gaseous shell, which is illuminated by its extremely hot central star, a core left from the original star. n this image, the central star is clearly visible at very center of the nebula. M27's central star has a magnitude of 13.5 and is an extremely hot blueish dwarf with a temperature of about 85,000 K.
Our own star, the Sun, is expected to undergo the same process in a couple of billion years.
Be sure to click to an image to see it in large size!
Image is in HST-palette, (HST=Hubble Space Telescope)
Image is in HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Star colors are mixed from the NB channels, Red=H-a, G=O-III and B= 85%O-III + 15%H-a.
A closeup
no other processing, than calibration, stacking and nonlinear stretching.
In the final image, light deconvolution with a CCDSharp software was added, 30 iterations.
(Value 3 in CCDSharp)
Image is shot with a QHY9, Baader narrowband filter set and the Meade lx200 GPS 12" telescope..
Original versions from November 2009, with technical details:
Sh2-274, the "Medusa Nebula" as a Stereo Pair 3D
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.
Sh2-274, the "Medusa Nebula" as an anaglyph Red/Cyan 3D
You'll need Red/Cyan Eyeglasses to be able to see this image right.
Note, if you have a Red and Blue filters, you can use them! Red goes to Left eye.
Other 3D-formats:
Original 2D:
NOTE! This is a personal vision about forms and shapes, based on some known facts and an artistic impression.
Tuesday, February 1, 2011
The "Medusa Nebula", Sh2-274, project finalized
Sh2-274, the "Medusa"
Ra 07h 29m 02.69s Dec +13° 14′ 48.4″
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Star colors are mixed from the NB channels, Red=H-a, G=O-III and B= 85%O-III + 15%H-a.
The Medusa Nebula is a large planetary nebula in the constellation of Gemini on the border of the Canis Minor. It also known as Abell 21 and Sharpless 274 (Sh2-274)
This nebula was thought to be a supernova remnant until early 1970, now it's known to be a planetary nebula.
Distance is about 1500 light years.
This has been the most difficult target to me to shoot by so far. The surface brightness of this, very diffused planetary, is reported to be between magnitude +15,99 up to +25!
Up here, at 65N, this target doesn't get very high and usually this time of the year is very cloudy. I started this project back in March 2010.
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack.
Levels, curves and color combine in PS CS3.
Equipments:
Telescope, Meade LX200 GPS 12" @ f5
Camera, QHY9 Guiding, SXV-AO @ 4,5Hz
Image Scale, 0,75 arcseconds/pixel
Exposures:
Baader H-alpha 7nm 5x1200s, binned 2x2
Baader H-alpha 7nm 5x1200s, binned 2x2 from previous session at January 12. 2011
Baader H-alpha 7nm 7x1200s, binned 1x1 from previous session at March 14.2010.
Baader O-III 8,5nm 3x1200s, binned 3x3
Baader O-III 8,5nm 1x1200s, binned 4x4 from previous session at January 12. 2011
Baader S-II 8nm 3x1200s, binned 4x4
EDIT.
There was some reflections in a O-III channel (Blue). I have fixed the channel now.
Special thanks to a "Bill W" from a "Cloudynights forum" to point this out.
EDIT.
There was some reflections in a O-III channel (Blue). I have fixed the channel now.
Special thanks to a "Bill W" from a "Cloudynights forum" to point this out.
Sh2-142, the "Wizard Nebula", wide field & a closeup reprocessed
Since my processing technique gets better and weather doesn't give any support, I have reprocessed some older images. There is now star colors added and other processing is tweaked too.
Sh2-142, the "Wizard"
Ra 22h 47.0m Dec 58° 06′
Image is in HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Star colors are mixed from the NB channels, Red=H-a, G=O-III and B= 85%O-III + 15%H-a.
NGC 7380 is an open cluster inside the nebula. The "Wizard Nebula" is also known as a Sharpless catalog number 142. (Sh2-142) The nebula is relatively large object located in constellation Cepheus about 7000 light years away.
Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission. This composition is very close to a visual spectrum.
Image is shot with a QHY8 and the Tokina AT 300mm f2.8 lens at full aperture.
Original versions from November 2008, with technical details:
Sh2-142, the "Wizard" a closeup
Image is in HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Star colors are mixed from the NB channels, Red=H-a, G=O-III and B= 85%O-III + 15%H-a.
This is a newer closeup image of the actual nebula. It covers about 30 arc minutes horizontally.
Original processing from September 2010 and technical details can be found here:
Monday, January 31, 2011
The "Cone Nebula" as a Stereo Pair 3D study
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.
The "Cone nebula" as an anaglyph Red/Cyan 3D
You'll need Red/Cyan Eyeglasses to be able to see this image right.
Note, if you have a Red and Blue filters, you can use them! Red goes to Left eye.
A closeup
Other 3D-formats:
Original 2D:
NOTE! This is a personal vision about forms and shapes, based on some known facts and an artistic impression.
Sunday, January 30, 2011
Two ways to end a life, A planetary nebula and a supernova remnant
Since my processing technique gets better and weather doesn't give any support, I have reprocessed some older images. There is now star colors added and other processing is tweaked too.
Sh2-221, 216, 217 and 219
in constellation Auriga
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Star colors are mixed from the NB channels, Red=H-a, G=O-III and B= 85%O-III + 15%H-a.
Note. Looks like that there is an outer shell in the Sh2-216 planetary nebula at a right hand side of the image
It's visible only in ionized sulfur channel, I never seen it before in any image. It can be seen as a red color in HST-palette image above. It's most visible at twelve and six a clock position above and belove the main body of the nebula.
In this rare image, two Stars has ended they lifes. Right one is an old, very dim and large, Planetary Nebula and the Left one is an extremely dim Supernova remnant. The North is Up and the field of view is about 5,5 degrees horizontal.
I have seen very few images of eather of them, and never seen them as a three colour narrow band.
Objects in the image are from the Sharples Catalog. Left one is Sh2-221 and the Right one Sh2-216.
There are other smaler Sh2-objects too in a same field, Sh2-217 and Sh2-219, they are all located in constellation Auriga.
Objects in the image are from the Sharples Catalog. Left one is Sh2-221 and the Right one Sh2-216.
There are other smaler Sh2-objects too in a same field, Sh2-217 and Sh2-219, they are all located in constellation Auriga.
Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission. This composition is very close to a visual spectrum.
Image is shot with a QHY9, Baader narrowband filter set and the Canon EF 200mm F1.8 lens @ f1.8.
Original versions from March 2009, with technical details:
Friday, January 28, 2011
IC 5070 (IC 5067) The "Pelican Nebula" reprocessed
Since my processing technique gets better and weather doesn't give any support, I have reprocessed some older images. There is now star colors added and other processing is tweaked too.
The "Pelican Nebula"
Ra 20h 50m 48s Dec +44° 20′ 60"
Image is in HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Star colors are mixed from the NB channels, Red=H-a, G=O-III and B= 85%O-III + 15%H-a.
The Pelican Nebula (also known as IC5070 and IC5067) is an Hydrogen emission region associated with the North America Nebula in the constellation Cygnus. The nebula resembles a pelican in shape, hence the name. The Pelican Nebula is , close to Deneb, and divided from its brighter, larger neighbor, the North America Nebula, by a molecular cloud filled with dark dust. Distance is about 1800 light years
Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission. This composition is very close to a visual spectrum.
A closeup
A closeup
Image is shot with a QHY9 and the Meade LX200 GPS 12" @ f5, pixel scale 0.75pixels/arc second.
Original versions from September 2009, with technical details:
A wide field image, the area of interest is marked with a gray rectangle.
North America Nebula is in upper part of the image. The dark molecular cloud, mentioned in a text above, can be seen in the middle.
This image is my firs narrowband image, original data is here:
It does look like a Pelican!
Pelican nebula as a Stereo Pair 3D
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
Pelican nebula as an anaglyph Red/Cyan 3D
You'll need Red/Cyan Eyeglasses to be able to see this image right.
Note, if you have a Red and Blue filters, you can use them! Red goes to Left eye.
A closeup
Other 3D-formats:
Original 2D:
NOTE! This is a personal vision about forms and shapes, based on some known facts and an artistic impression.
Cat's Eye Nebula as a Stereo Pair 3D
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.
Cat's Eye Nebula as an anaglyph Red/Cyan 3D
You'll need Red/Cyan Eyeglasses to be able to see this image right.
Note, if you have a Red and Blue filters, you can use them! Red goes to Left eye.
Other 3D-formats:
Original 2D:
NOTE! This is a personal vision about forms and shapes, based on some known facts and an artistic impression.
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