Saturday, October 9, 2010
M57 as an anaglyph Red/Cyan 3D
Other 3D-formats can be found here:
Original 2D-image and details:
NOTE! This 3D-study is a personal vision about forms and shapes, based on some known facts and an artistic impression.
Thursday, October 7, 2010
M57, the "Ring Nebula", project finalized
The halo was clear in H-alpha channel and there was some hints of it in luminance one.
Ring Nebula, M57, NGC 6822, locates in constellation Lyra, near a very bright star Vega. This planetary nebula lays about 2300 light years away from the Earth and has a diameter of 1,3 light years.
The small angular diameter, 230" x 230", makes this target difficult to image. The central white dwarf of planetary nebula nucleus is seen in an image as a Bluish dim star, visual magnitude is 15,75. Star was visible only in O-III channel and luminance channel.
A closeup
Less compressed image in my Portfolio:
http://astroanarchy.zenfolio.com/p1072219942/h2becaeff#h2becaeff
http://astroanarchy.zenfolio.com/p1072219942/h2becaeff#h2becaeff
Technical details:
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" @ f5
Camera, QHY9 Guiding, SXV-AO @ 8,5Hz
Image Scale, 0,75 arcseconds/pixel
Exposures H-alpha 9x1200s, binned 1x1
O-III 3x1200s, binned 1x1
Luminance, IDAS LP-filter 9 x 600s, binned 1x1
Wednesday, October 6, 2010
3D-study of NGC 300 galaxy
An experiment with the NGC 300. All the stars from our milky way are removed and the original 2D-galaxy image is the projected to a 3D-surface. The resulting 3D-model is animated to a movie file. The purpose is to show the actual shape of the galaxy, now distorted by a perspective.
Original 2D-image and the technical data:
NGC 300
NGC 300, the spiral galaxy in constellation Sculptor, distance is about 6 million light years.
It's likely, that NGC300 and NGC55 forms a gravitationally bound pair.
I have shot NGC 55, an irregular galaxy, ealier and it can be found here:
I have shot NGC 55, an irregular galaxy, ealier and it can be found here:
http://astroanarchy.blogspot.com/2010/09/ngc-55-irregular-galaxy-in.html
Image of NGC 55
"NGC300 and NGC55 forms a gravitationally bound pair."
"NGC300 and NGC55 forms a gravitationally bound pair."
Surface brightness is lowish and this image gave me a hard time when processing the raw data. I tried to keep a "diffused" look of it. Active parts of this galaxy can be seen as a Blue and Red areas in a spiral arms.
A closeup
Technical details:
16" RCOS ja Apogee U9000 camera.
LRGB combo. An Australian remote telescope
5x1200s for the Luminance and 2x600s / RGB-channel . Dark, Bias and Flat calibrated.
Raw data is shared by Petri Kehusmaa and J-P Metsavainio
Processing workflow:
Image acquisition, MaxiDL v4.xxx
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations, added at 50% weight.
Levels, curves and color combine in PS CS3.
Something extra in my image
A bright trail trough a single raw frame of NGC 300.
A closeup, there is odd looking pattern inside of trail.
Mystery was solved by a help from Bert Candusio, the administrator of Northern Galactic group.
Object seen in the image is a geocentric satellite COSMOS 1536.
Thank you Bert.
Tuesday, October 5, 2010
M57, the "Ring Nebula" NGC 6882
Narrow band image of the M57 as a bi color, H-alpha & O-III, composition.
Not too commonly imaged outer halo structure can be seen in an image. There is least two layers of it, outer one is faintly seen in this image. There is clear O-III signal too in a first layer of outer halo.
Not too commonly imaged outer halo structure can be seen in an image. There is least two layers of it, outer one is faintly seen in this image. There is clear O-III signal too in a first layer of outer halo.
Ring Nebula, M57, NGC 6822, locates in constellation Lyra, near a very bright star Vega. This planetary nebula lays about 2300 light years away from the Earth and has a diameter of 1,3 light years.
The small angular diameter, 230" x 230", makes this target difficult to image. The central white dwarf of planetary nebula nucleus is seen in an image as a Bluish dim star, visual magnitude is 15,75. Star was visible only in O-III channel.
The small angular diameter, 230" x 230", makes this target difficult to image. The central white dwarf of planetary nebula nucleus is seen in an image as a Bluish dim star, visual magnitude is 15,75. Star was visible only in O-III channel.
A closeup
Technical details:
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" @ f5
Camera, QHY9 Guiding, SXV-AO @ 8,5Hz
Image Scale, 0,75 arcseconds/pixel
Exposures H-alpha 9x1200s, binned 1x1
O-III 3x1200s, binned 1x1
Monday, October 4, 2010
NGC 1365 as a 3D-stereo pair
Parallel vision
Cross vision
Other 3D-formats can be found here:
Original 2D-image and details:
A 3D-transform test:
NOTE! This 3D-study is a personal vision about forms and shapes, based on some known facts and an artistic impression.
Viewing instructions can be found from a Right hand side menu.
Viewing instructions can be found from a Right hand side menu.
NGC 1365 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 can be found here:
Original 2D-image and details:
A 3D-transform test:
NOTE! This 3D-study is a personal vision about forms and shapes, based on some known facts and an artistic impression.
NGC 1365, 3D-transformation test
An experiment with the NGC 1365, the "Great Barred Spiral Galaxy". All the stars from our milky way are removed and the original 2D-galaxy image is the projected to a 3D-surface. The resulting 3D-model is then animated to a movie file. The purpose is to show the actual shape of the galaxy, now distorted by a perspective.
Original image and the thechnical details can be found here: http://astroanarchy.blogspot.com/2010/10/ngc-1365-great-barred-spiral-galaxy.html
Sunday, October 3, 2010
NGC 1365, the "Great Barred Spiral Galaxy"
NGC 1365, the "Great Barred Spiral Galaxy" locates in constellation Fornax about 61 million light years away. This is an enormous galaxy, 200.000 light years across, one of the larges galaxies known by astronomers.
Technical details:
16" RCOS ja Apogee U9000 camera.
LRGB combo. An Australian remote telescope
10x600s for the Luminance and 6x600s / RGB-channel . Dark, Bias and Flat calibrated.
Raw data is shared by Petri Kehusmaa and J-P Metsavainio
Processing workflow:
Image acquisition, MaxiDL v4.xxx
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations.
Levels, curves and color combine in PS CS3.
Thursday, September 30, 2010
Animated 3D from two targets, the "Tarantula" & the "Wizard"
Animations are made by creating artificial parallax to an image. Then two images are animated together by using conversion web service, Start3D. There can be some artifacts in images, due the experimental nature of this work! The volumetric models are based on some known facts and an artistic impression.
Please, let the images load for few seconds to see them animated!
The "Tarantula Nebula"
Other 3D-formats can be found here:
Original 2D-image and details:
The "Wizard Nebula"
Other 3D-formats can be found here:
Original 2D-image and details:
NOTE! This 3D-study is a personal vision about forms and shapes, based on some known facts and an artistic impression.
Stereo pairs of two nebulae, the "Tarantula" & the "Wizard"
The "tarantula Nebula"
Parallel vision
Cross vision
Other 3D-formats can be found here:
Original 2D-image and details:
The "Wizard Nebula"
Parallel vision
Cross vision
Other 3D-formats can be found here:
Original 2D-image and details:
NOTE! This 3D-study is a personal vision about forms and shapes, based on some known facts and an artistic impression.
Viewing instructions can be found from a Right hand side menu.
Viewing instructions can be found from a Right hand side menu.
Anaglyph 3D from two targets, the "Tarantula" & the "Wizard"
The "Tarantula Nebula"
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 can be found here:
Original 2D-image and details:
The "Wizard Nebula"
Other 3D-formats can be found here:
Original 2D-image and details:
NOTE! This 3D-study is a personal vision about forms and shapes, based on some known facts and an artistic impression.
Tuesday, September 28, 2010
A star suppression example
An animated image of the star and starless versions of the "Wizard Nebula"
I often use a starless image in one of the processing steps of the astronomical image.
Sometimes I publish the starless version too, it looks kind of nice, or spooky, that's a matter of taste.
If there is a dense star-field, nebula itself could be hard to detect. When stars are suppressed, the nebula can be seen better due the fact, that human brains tend to form false shapes from the cloud of dots.
Here is an example of my "Tone Mapping" technique:
A PDF-tutorial can be found behind this link:
M57, the "Ring Nebula", a new imaging project
M57, NGC 6822, the "Ring Nebula", locates in constellation Lyra and the distance is about 2300 light years.
Last night I started a new imaging project with the M57. I'm targeting to expose outer shells of this planetary nebula. There is two layers of outer shells, both very dim. In this image the first shell is visible clearly and there is a hint of the second one. There is now 2h 40min. of H-alpha exposures, least ten more hours is needed to show the structure in H-a light.
The, 1.2 solar masses, white dwarf in the center of the nebula has visual magnitude 15,75. It can't be seen in a H-alpha light image, it will be interesting to see, if it'll shows at O-III channel I'm gonna shoot later.
Too bad, that I'm not able to shoot any broad band luminance data due my intense light pollution, with H-a, needed exposure time will be very long..
Too bad, that I'm not able to shoot any broad band luminance data due my intense light pollution, with H-a, needed exposure time will be very long..
This target is not very high, here at 65N. Maximum elevation is about 50 degrees and after two and half hours, it was only about 30. Since this is a small target, good seeing and reasonable altitude is needed to show any details.
Technical details:
processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack.
Levels and curves in PS CS3.
Telescope, Meade LX200 GPS 12" @ f5
Camera, QHY9 Guiding, SXV-AO @ 10Hz
Image Scale, 0,75 arcseconds/pixel
Exposures H-alpha 7x1200s, binned 1x1
Monday, September 27, 2010
Sh2-142, the "Wizard Nebula"
Sh2-142 alias NGC 7380, in HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
I use a starless image in one of the processing steps. Sometimes I publish it, since the actual nebula can be better seen by this way.
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.
NGC 7380 is a catalog number of the open star cluster inside Wizard nebula, SH2-142.
Nebula locates in constellation Cepheus, about 7000 light years from my home.
Technical details:
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" @ f5
Camera, QHY9 Guiding, SXV-AO @ 6,5Hz
Image Scale, 0,75 arcseconds/pixel
Exposures H-alpha 15x1200s, binned 1x1
S-II 1x1200s, binned 4x4
O-III 1x1200s, binned 4x4
I have used color data from an older, 2008, wide field image of Sh2-142.
Technical details for image used for colors:
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