Showing posts sorted by relevance for query wizard. Sort by date Show all posts
Showing posts sorted by relevance for query wizard. Sort by date Show all posts
Sunday, February 2, 2014
A poster format collection from the Cepheus project
In this collection of my images, the objects shown in a large mosaic of the constellation Cepheus, are collected together. There are indicator lines to show the actual location of object in a large context. As can be seen, I have shot many objects in various focal lengths.
The Cepheus project was my last published image before the major break down of my imaging equipment.
The Cepheus project was my last published image before the major break down of my imaging equipment.
The Cepheus collection
Be sure to click the image to see it in full scale! (2400 x 2000 pixels and 4,5 MB)
An Original blog post of The Cepheus project can be seen HERE.
Small images clockwise, starting from the top left
- Cave Nebula, a closeup: http://astroanarchy.blogspot.fi/2012/12/the-cave-nebula_9.html
- Cave Nebula, a wide field shot: http://astroanarchy.blogspot.fi/2011/01/sh2-155-cave-nebula-reprocessed.html
- Sharpless 140: http://astroanarchy.blogspot.fi/2012/02/dim-and-large-nebula-in-cepheus.html
- Sharpless 129: http://astroanarchy.blogspot.fi/2013/12/a-start-of-new-project-cepheus-mosaic.html
- Elephant's Trunk Nebula: http://astroanarchy.blogspot.fi/2012/12/elephants-trunk-nebula-reprocessed.html
- IC 1396: http://astroanarchy.blogspot.fi/2011/10/ic-1396-home-of-elephants-trunk-nebula.html
- Sharpless 132, a wide field shot: http://astroanarchy.blogspot.fi/2011/02/sh2-132-project-finalized.html
- Sharpless 132, a closeup: http://astroanarchy.blogspot.fi/2013/10/the-second-image-of-autumn-season-2013.html
- The Wizard Nebula: http://astroanarchy.blogspot.fi/2011/07/sh2-142-wizard-nebula-reprocessed.html
- Sharpless 157: http://astroanarchy.blogspot.fi/2011/03/sh2-157-reprocessed.html
- Bubble Nebula: http://astroanarchy.blogspot.fi/2011/03/bubble-nebula-reprocessed.html
Tuesday, September 21, 2010
NGC 7380 and the "Wizard Nebula", start of the new project
NGC 7380, Sh2-142 , the "Wizard Nebula", locates in constellation Cepheus about 7000 light years from Oulu, Finland. The open star cluster has a catalog number NGC 7380. It's a relatively young cluster, about 5 million years. Nebula spans some 110 light years.
There is only 1h 20 min. H-a light for the object, due some technical problems. Ones again, I spend most of the night by fixing my ***** scope.
Seeing was better than usually, FWHM about 2,5".
Seeing was better than usually, FWHM about 2,5".
I'll shoot much more H-alpha data and other NB channels, S-II and O-III later.
Image is very noisy due the short exposure time.
Image is very noisy due the short exposure time.
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 @ 6Hz
Image Scale, 0,75 arcseconds/pixel
Exposures H-alpha 4x1200s, binned 1x1
Monday, July 18, 2011
The "Bubble Nebula", in Hubble palette, apparent scale in the sky
I have shot many targets with several focal lengths.
Due that, I will publish some of my material as an image sets, with different field of view and detail levels.
The fractal nature of our universe stands out nicely by this way and it will make the orientation more easy.
Many times, it's difficult to understand the image scale of astronomical images.
Due that, I will add a Moon circle in some of the images to show the angular scale in a sky.
The full Moon has an angular size of ~30 arc minutes, that's equal to ~0,5 degrees.
Sharpless 162, NGC 7635, the "Bubble Nebula"
Ra 23h 20m 48s Dec +61° 12′ 06″
Images are 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.
NOTE. The size of the full Moon (0,5 degrees) is marked as a gray circle in all of the images.
NOTE. The size of the full Moon (0,5 degrees) is marked as a gray circle in all of the images.
A scale study of the "Bubble Nebula", in natural color composition, can be seen here:
Images used in the series above from top to bottom
- A wide field mosaic from the Bubble and Sharpless 157 to the Wizard Nebula at Right. Images are taken with a Tokina AT-X 300mm camera lens.
- A Sh2-157 and Bubble Nebula part of the mosaic, Tokina AT-X 300mm
- Zoomed in version from the previous image
- A close up of the Bubble Nebula imaged with a Meade LX200 GPS 12" telescope, focal lenght ~2000mm.
- A zoomed in version of image above.
This is one of the most interesting looking structures in the sky!
NGC 7635 aka "Bubble Nebula, Sh2-162 or Caldwell11, is a Hydrogen emission nebula in constellation Cassiopeia. It locates near the open cluster M 52 at distance of about 11.000 light years from the Earth.
The bubble structure is created by a strong stellar wind, a radiation pressure, from massive hot magnitude 8,7 central star, SAO 20575, it can be seen in an image inside of the bubble, off centered at Right.
Bubble is an expanding shock front inside a giant molecular cloud and it has a diameter more than Six light years. The spherical formation is expanding at speed of 6500.000 km/h, due the huge scale and distance we can't see the movement easily. In a century, the bubble in this image will be only about one pixel wider, than now! ( ~1 arc second)Strong UV-radiation from a central star ionized elements in a gas and makes them glow at typical wavelength to each element. (Hydrogen glows Red light as Sulfur, Oxygen emits Green/Blue light at visible wavelengths)
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:
Thursday, October 13, 2011
Astro anarchy gets published
My image of the "Wizard Nebula", NGC 7380, get published in the Discovery Magazine.
In October 2011 issue, there is an article about multiverse, and they did use my image with it. Images can be found from a table of content , page 2, and in the story, page 31.
This is the used image. Original blog post, with a technical details, can be found HERE.
Saturday, August 13, 2011
Bubble Nebula, apparent scale in the sky, horizontal editions
I have shot many targets with several focal lengths.
Due that, I will publish some of my material as an image sets, with different field of view and detail levels.
The fractal nature of our universe stands out nicely by this way and it will make the orientation more easy.
Many times, it's difficult to understand the image scale of astronomical images.
Due that, I will add a Moon circle in some of the images to show the angular scale in a sky.
The full Moon has an angular size of ~30 arc minutes, that's equal to ~0,5 degrees.
Sharpless 162, NGC 7635, the "Bubble Nebula"
Ra 23h 20m 48s Dec +61° 12′ 06″
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.
NOTE. The size of the full Moon (0,5 degrees) is marked as a scale.
NGC 7635 aka "Bubble Nebula, Sh2-162 or Caldwell11, is a Hydrogen emission nebula in constellation Cassiopeia. It locates near the open cluster M 52 at distance of about 11.000 light years from the Earth.
The bubble structure is created by a strong stellar wind, a radiation pressure, from massive hot magnitude 8,7 central star, SAO 20575, it can be seen in an image inside of the bubble, off centered at Right.
The bubble structure is created by a strong stellar wind, a radiation pressure, from massive hot magnitude 8,7 central star, SAO 20575, it can be seen in an image inside of the bubble, off centered at Right.
Bubble is an expanding shock front inside a giant molecular cloud and it has a diameter more than Six light years. The spherical formation is expanding at speed of 6500.000 km/h, due the huge scale and distance we can't see the movement easily. In a century, the bubble in this image will be only about one pixel wider, than now! ( ~1 arc second)
Strong UV-radiation from a central star ionized elements in a gas and makes them glow at typical wavelength to each element. (Hydrogen glows Red light as Sulfur, Oxygen emits Green/Blue light at visible wavelengths)
If you are interested about color schemes used in my images, I wrote a small study about them, please, have a look here: http://astroanarchy.blogspot.com/2009/11/colors-in-astro-images.html
Images are 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.
NOTE. The size of the full Moon (0,5 degrees) is marked as a gray circle in all of the images.
NOTE. The size of the full Moon (0,5 degrees) is marked as a gray circle in all of the images.
Images used in the series above from Left to Right
- A wide field mosaic from the Bubble and Sharpless 157 to the Wizard Nebula at Right. Images are taken with a Tokina AT-X 300mm camera lens.
- A Sh2-157 and Bubble Nebula part of the mosaic, Tokina AT-X 300mm
- Zoomed in version from the previous image
- A close up of the Bubble Nebula imaged with a Meade LX200 GPS 12" telescope, focal lenght ~2000mm.
- A zoomed in version of image above.
Vertical versions can be seen here:
and
Monday, September 5, 2011
Bubble Nebula reprocessed, again
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.
Sharpless 162, NGC 7635, the "Bubble Nebula"
Ra 23h 20m 48s Dec +61° 12′ 06″
A closeup
A closer closeup of the bubble feature
Not a bad resolution for an olde Meade LX200 GPS 12" telescope...
I made this animation originally to be sure, that I don't have any artifacts from my experimental processing workflow.
I made this animation originally to be sure, that I don't have any artifacts from my experimental processing workflow.
This is one of the most interesting looking structures in a sky.
NGC 7635 aka "Bubble Nebula, Sh2-162 or Caldwell11, is a Hydrogen emission nebula in constellation Cassiopeia. It locates near the open cluster M 52 at distance of about 11.000 light years from the Earth.
The bubble structure is created by a strong stellar wind, a radiation pressure, from massive hot magnitude 8,7 central star, SAO 20575, it can be seen in an image inside of the bubble, off centered at Right.
NGC 7635 aka "Bubble Nebula, Sh2-162 or Caldwell11, is a Hydrogen emission nebula in constellation Cassiopeia. It locates near the open cluster M 52 at distance of about 11.000 light years from the Earth.
The bubble structure is created by a strong stellar wind, a radiation pressure, from massive hot magnitude 8,7 central star, SAO 20575, it can be seen in an image inside of the bubble, off centered at Right.
Bubble is an expanding shock front inside a giant molecular cloud and it has a diameter more than Six light years. The spherical formation is expanding at speed of 6500.000 km/h, due the huge scale and distance we can't see the movement easily. In a century, the bubble in this image will be only about one pixel wider, than now! ( ~1 arc second)
Strong UV-radiation from a central star ionized elements in a gas and makes them glow at typical wavelength to each element. (Hydrogen glows Red light as Sulfur, Oxygen emits Green/Blue light at visible wavelengths)
If you are interested about color schemes used in my images, I wrote a small study about them, please, have a look here: http://astroanarchy.blogspot.com/2009/11/colors-in-astro-images.html
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. Star colors are mixed from the NB channels, Red=H-a, G=O-III and B= 85%O-III + 15%H-a.This composition is very close to a visual spectrum.
A closeup
Previous version of the Bubble Nebula can be seen here:
Please, let me know, if this one looks better!
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.
-
Imaged 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
A study of the apparent scale in a sky
NOTE. The size of the full Moon (0,5 degrees) is marked as a scale.
3D-study of the Bubble Nebula:
http://astroanarchy.blogspot.com/2009/10/bubble-nbula-as-stereogram.html
3D-study of the Bubble Nebula:
http://astroanarchy.blogspot.com/2009/10/bubble-nbula-as-stereogram.html
Wide field images of the Bubble Nebula area
Sharpless 157, Sh2-157, in a middle, Bubble Nebula can be seen at about ten a clock position.
A panoramic, two panel mosaic, from the Bubble to the Wizard Nebula at Right.
Friday, December 4, 2020
Cassiopeia mosaic gets larger, now up to Cepheus
I started this imaging project at Spring season 2020m now I have shot more frames for this active region of the sky. At center of the photo lays the Bubble and cave nebula At lower left locates the Cederblad 214 and just few degrees to right from it lays the supernova remnant CTB1, it can be seen as a thin ring like formation. The Wizard nebula can be seen at upper right corner of the image. Note. there is a moon as a scale at a lower left corner of the image. This is a large area of space and I I have now join this mosaic image to a large one from 2012. I will continue this mosaic soon!
There is an interesting looking dim and large circular formation at center left, there is a bright star at almost center of it. Could this be an uncataloged supernova remnant?
Total exposure time is now around 150 hours, if older exposures are included. with my current wide field imaging system build around the Tokina AT-x 300 mm f2.8 camera optics. Astro Don 50x50 mm square narrowband filters, 5nm H-alpha, 3nm O-III and 3nm S-II. Camera is a massive Apogee Alta U16.
This mosaic has now twenty individual frame stitched seamlessly together,
From cassiopeia to cepheus
Click for a much large image, it's worth it! (1400 x 2200 pixels)
Click for a much large image, it's worth it! (1400 x 2200 pixels)
Image is in mapped colors from a light from the ionized elements, hydrogen = green, sulfur = red and oxygen = blue. NOTE, there is an image of the Moon at the same scale in lower left corner.
Orientation
Click for a much large image
Previous version of the mosaic
Click for a much large image
More previous version can be seen here, https://astroanarchy.blogspot.com/2020/11/cassiopeia-mosaic-gets-larger.html
Start of this imaging project at this year
Click for a large image
Image info, https://astroanarchy.blogspot.com/2020/03/from-bubble-to-cave-nebula-area.html
Sunday, November 29, 2020
Cassiopeia mosaic gets larger
I started this imaging project at Spring season 2020m now I have shot more frames for this active region of the sky. At center of the photo lays the Bubble and cave nebula At lower left locates the Cederblad 214 and just few degrees to right from it lays the supernova remnant CTB1, it can be seen as a thin ring like formation. The Wizard nebula can be seen at upper right corner of the image. Note. there is a moon as a scale at a lower left corner of the image. This is a large area of space and I will join this mosaic image to a large one, I have shot it back in 2012.
There is an interesting looking dim circular formation at upper left, there is a bright star at almost center of it. Could this be an uncataloged supernova remnant?
Total exposure time is now around 50 hours with my current wide field imaging system build around the Tokina AT-x 300 mm f2.8 camera optics. Astro Don 50x50 mm square narrowband filters, 5nm H-alpha, 3nm O-III and 3nm S-II. Camera is a massive Apogee Alta U16. This mosaic has now ten frames.
Clouds of Cassiopeia
Click for a much large image, it's worth it!
Previous version of the mosaic
Click for a large image
Click for a large image
More info about this image here, https://astroanarchy.blogspot.com/2020/03/from-cassiopeia-to-cepheus.html
Start of the imaging project
Click for a large image
Image info, https://astroanarchy.blogspot.com/2020/03/from-bubble-to-cave-nebula-area.html
Monday, April 22, 2013
I need more space
I made a small poster, just for a fun.
Couple of versions
Sunday, May 29, 2011
The "Bubble Nebula", apparent scale in the sky
I have shot many targets with several focal lengths.
Due that, I will publish some of my material as an image sets, with different field of view and detail levels.
The fractal nature of our universe stands out nicely by this way and it will make the orientation more easy.
Many times, it's difficult to understand the image scale of astronomical images.
Due that, I will add a Moon circle in some of the images to show the angular scale in a sky.
The full Moon has an angular size of ~30 arc minutes, that's equal to ~0,5 degrees.
Sharpless 162, NGC 7635, the "Bubble Nebula"
Ra 23h 20m 48s Dec +61° 12′ 06″
NOTE. The size of the full Moon (0,5 degrees) is marked as a gray circle in all of the images.
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. Star colors are mixed from the NB channels, Red=H-a, G=O-III and B= 85%O-III + 15%H-a.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. Star colors are mixed from the NB channels, Red=H-a, G=O-III and B= 85%O-III + 15%H-a.This composition is very close to a visual spectrum.
Images used in the series above from top to bottom
- A wide field mosaic from the Bubble and Sharpless 157 to the Wizard Nebula at Right. Images are taken with a Tokina AT-X 300mm camera lens.
- A Sh2-157 and Bubble Nebula part of the mosaic, Tokina AT-X 300mm
- Zoomed in version from the previous image
- A close up of the Bubble Nebula imaged with a Meade LX200 GPS 12" telescope, focal lenght ~2000mm.
- A zoomed in version of image above.
This is one of the most interesting looking structures in the sky!
NGC 7635 aka "Bubble Nebula, Sh2-162 or Caldwell11, is a Hydrogen emission nebula in constellation Cassiopeia. It locates near the open cluster M 52 at distance of about 11.000 light years from the Earth.
The bubble structure is created by a strong stellar wind, a radiation pressure, from massive hot magnitude 8,7 central star, SAO 20575, it can be seen in an image inside of the bubble, off centered at Right.
Bubble is an expanding shock front inside a giant molecular cloud and it has a diameter more than Six light years. The spherical formation is expanding at speed of 6500.000 km/h, due the huge scale and distance we can't see the movement easily. In a century, the bubble in this image will be only about one pixel wider, than now! ( ~1 arc second)Strong UV-radiation from a central star ionized elements in a gas and makes them glow at typical wavelength to each element. (Hydrogen glows Red light as Sulfur, Oxygen emits Green/Blue light at visible wavelengths)
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