Monday, September 9, 2013
Sh2-112, processed with an additional data
I'm waiting to start imaging a new material but there are few items in factory service and I'll need to wait them to come back. Mean while I reprocessed my image of Sharpless object 112 in constellation Cygnus.
Originally I had too little exposures to reveal the background nebulous properly. I noticed, that I actually have a very deep exposures for this object but taken with very different image scale. I have shot this area with a Canon EF 200mm f1.8 optics and the background nebulous stands out very nicely there.
I have developed a new method to combine data from very different sources. It's based on signal to noise analysis, a very weak signal doesn't usually has too much details in it. The weak signal from a low resolution source can be used with a high resolution signal and best of both image types will be used in final image.
http://astroanarchy.blogspot.fi/2012/12/sharpless-112-sh2-112_5.html
Sharpless 112
An emission nebula in constellation Cygnus
The additional data is taken from this wide field image of the same object
Image in mapped colors from the light emitted by ionized elements.
Red=Sulfur, Green=Hydrogen and Blue=Oxygen.
This is a small part of a very large mosaic image of the constellation Cygnus, the mosaic can be seen HERE.
Sh2-112 is located at lower center of the image and the weak background nebulae stand out clearly. Image is shot with a very fast opticla configuration, a Canon EF 200mm f1.8 lens at full open, a cooled astronomical camera, the QHY9 and the Baader narrowband filter set. Total exposure time for this image is around 4h.
Sh2-112 in visual spectrum
Technical details:
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Levels, curves and color combine in PS CS3.
Optics, Meade LX200 GPS 12" @ f5
Camera, QHY9
Guiding, SXV-AO, an active optics unit, and Lodestar guide camera 8Hz
Image Scale, ~0,8 arc-seconds/pixel
21 x 1200s exposures for the H-alpha, emission of ionized Hydrogen = 7h
3 x 1200s exposures for the O-III, emission of ionized Oxygen = 1h
3 x 1200s exposures for the S-II, emission of ionized Sulfur = 1h
Additional exposures for the background nebulae are shot with a very fast opticla configuration, a Canon EF 200mm f1.8 lens at full open, a cooled astronomical camera, the QHY9 and the Baader narrowband filter set. Total exposure time for this extra data is around 4h.
Additional exposures for the background nebulae are shot with a very fast opticla configuration, a Canon EF 200mm f1.8 lens at full open, a cooled astronomical camera, the QHY9 and the Baader narrowband filter set. Total exposure time for this extra data is around 4h.
Sunday, September 8, 2013
Bubble 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.
Image is shot with a QHY9 and the Meade LX200 GPS 12" @ f5, pixel scale 0.65pixels/arc second.
Original versions from October 2009, with technical details:
http://astroanarchy.blogspot.com/2009/10/bubble-nebula-finalized.html
http://astroanarchy.blogspot.com/2009/10/bubble-nebula-finalized.html
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. 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.
Image is in mapped colors from the emission of ionized elements, R=Sulfur, G=Hydrogen & B=Oxygen.Star colors are mixed from the NB channels, Red=H-a, G=O-III & B= 85%O-III + 15%H-a.
INFO
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.
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)Orientation
A wider field image of the region, Bubble can be seen at ten a clock position as a bright "pearl".
Buy a photographic print from HERE
Gray circle shows the apparent size of the full Moon.
The Bubble Nebula as an experimental 3D-model
This is a looped video, click to start and stop. Original movie is in HD1080p resolution.
More info about the animation in this blog post:
http://astroanarchy.blogspot.fi/2013/02/3d-study-of-bubble-nebula.html
More info about the animation in this blog post:
http://astroanarchy.blogspot.fi/2013/02/3d-study-of-bubble-nebula.html
Thursday, September 5, 2013
IC 443, a supernova remnant reprocessed
There is now added some new data found from my hard drive. Image is now little wider giving a better composition. An older version can be seen here: http://astroanarchy.blogspot.fi/2013/02/ic-443-supernova-remnant-as-closeup.html Not a massive difference but image works now somehow better with some extra space at sides.
I have shot several times this supernova remnant in Gemini. In this image, there are three different exposure sets combined, first from the year 2010 and two others from this season. Total exposure time is now around 20h. Latest images for this target are shot at 11.02 this week, 3h of H-alpha emission.
A Gemini SNR, IC 443, the "Jellyfish Nebula"
Ra 06h 17m 13s Dec +22° 31′ 05′′
Image is in mapped colors, from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
IC 443 (also known as the Jellyfish Nebula and Sharpless 248 (Sh2-248)) is a Galactic supernova remnant (SNR) in the constellation Gemini. It locates visually near the star Eta Geminorum at distance of about 5000 light years.
IC 443 may be the remains of a supernova that occurred 3,000 - 30,000 years ago. The same supernova event likely created the neutron star CXOU J061705.3+222127, the collapsed remnant of the stellar core. IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds
Source Wikipedia, http://en.wikipedia.org/wiki/IC_443
INFO
IC 443 (also known as the Jellyfish Nebula and Sharpless 248 (Sh2-248)) is a Galactic supernova remnant (SNR) in the constellation Gemini. It locates visually near the star Eta Geminorum at distance of about 5000 light years.
IC 443 may be the remains of a supernova that occurred 3,000 - 30,000 years ago. The same supernova event likely created the neutron star CXOU J061705.3+222127, the collapsed remnant of the stellar core. IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds
Source Wikipedia, http://en.wikipedia.org/wiki/IC_443
A 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.
Older wide field images of the same target
Click for large images
http://astroanarchy.blogspot.fi/2011/07/ic-443-snr-scale-in-sky-zoom-in-series.html
Map of constellation Gemini
Technical details
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Levels, curves and color combine in PS CS3.
Optics, Meade LX200 GPS 12" @ f5
Camera, QHY9
Guiding, SXV-AO, an active optics unit, and Lodestar guide camera 8Hz
Image Scale, ~0,8 arc-seconds/pixel
Exposures for the H-alpha, emission of ionized Hydrogen = 20h
Narrowband cahnnels for ionized Oxygen and Sulfur are taken from an older wide field image.
A single unprocessed 1200 second frame of H-a emission
This isn't a bright object...
Tuesday, September 3, 2013
Time and Space Puzzle
I made this just for a fun...
INFO
Image in the puzzle above shows my image of the Bubble nebula in constellation Cassiopeia.
More info about this nebula in this blog post:
http://astroanarchy.blogspot.fi/2011/03/bubble-nebula-reprocessed.html
Friday, August 30, 2013
Wonders of Gemini
The collection
I made a collection out of my images from the constellation Gemini. Pictures are taken between 2007-2013 with different instruments. Closeups are taken with my longer focal length instrument, an old Meade LX200 12" telescope. Wider field images are taken by using two camera lenses, Tokina AT-X 300 f2.8 and Canon EF 200mm f1.8 lens, both full open. All images are shot with QHY9 astronomical camera and the Baader narrowband filter set, H-alpha, Oxygen and Sulfur.
Be sure to click the image to see it in full scale!
Note. a large image, ~5MB and 1900x3200 pixels
Technical data and other information
You will found all the images in this collection from my portfolio, with technical details.
Orientation
Wednesday, August 28, 2013
Wonders of Perseus
The collection
I made a collection out of my images from the constellation Cepheus. Pictures are taken between 2007-2013 with different instruments. Closeups are taken with my longer focal length instrument, an old Meade LX200 12" telescope. Wider field images are taken by using two camera lenses, Tokina AT-X 300 f2.8 and Canon EF 200mm f1.8 lens, both full open. All images are shot with QHY9 astronomical camera and the Baader narrowband filter set, H-alpha, Oxygen and Sulfur.
Be sure to click the image to see it in full scale!
Note. a large image, ~3.5MB and 1900x3100 pixels
Technical data and other information
You will found all the images in this collection from my portfolio, with technical details.
Orientation
Treasures of Cepheus
The collection
I made a collection out of my images from the constellation Cepheus. Pictures are taken between 2007-2013 with different instruments. Closeups are taken with my longer focal length instrument, an old Meade LX200 12" telescope. Wider field images are taken by using two camera lenses, Tokina AT-X 300 f2.8 and Canon EF 200mm f1.8 lens, both full open. All images are shot with QHY9 astronomical camera and the Baader narrowband filter set, H-alpha, Oxygen and Sulfur.
Be sure to click the image to see it in full scale!
Note. a large image, ~5MB and 1900x2800 pixels
Technical data and other information
You will found all the images in this collection from my portfolio, with technical details.
A Cosmic Question Mark
Cederblad 214
Orientation
Monday, August 26, 2013
Nebulae of Auriga
The collection
I made a collection out of my images from the constellation Auriga. Pictures are taken between 2007-2013 with different instruments. Closeups are taken with my longer focal length instrument, an old Meade LX200 12" telescope. Wider field images are taken by using two camera lenses, Tokina AT-X 300 f2.8 and Canon EF 200mm f1.8 lens, both full open. All images are shot with QHY9 astronomical camera and the Baader narrowband filter set, H-alpha, Oxygen and Sulfur.
Be sure to click the image to see it in full scale!
Note. a large image, ~7MB and 1900x3600 pixels
Technical data and other information
You will found all the images in this collection from my portfolio with technical details.
http://astroanarchy.zenfolio.com/
Large, 12-panels, mosaic of Auriga in higher resolution
Note. A largish image, 3.5MB and 2200x1200 pixels
http://www.astroanarchy.blogspot.fi/2012/03/auriga-panorama-gets-bigger-12-panels.html
Orientation
Saturday, August 24, 2013
Wonders of Cassiopeia
The collection
I made a collection out of my Cassiopeia images. Pictures are taken between 2007-2013 with different instruments. Closeups are taken with my longer focal length instrument, an old Meade LX200 12" telescope. Wider field images are taken by using two camera lenses, Tokina AT-X 300 f2.8 and Canon EF 200mm f1.8 lens, both full open. All images are shot with QHY9 astronomical camera and the Baader narrowband filter set, H-alpha, Oxygen and Sulfur.
Be sure to click the image to see it in full scale!
Note. a large image, ~4.5MB
Technical data and other information
You will found all the images in this collection from my portfolio with technical details.
http://astroanarchy.zenfolio.com/
Orientation
Wednesday, August 21, 2013
Treasures of Cygnus
I'm still waiting for an astronomical darkness to come, up here 65N. One of the best targets for astronomical imagers in Autumn sky is the nebula complex in constellation Cygnus. That'll be my first imaging target in this Autumn as well. I'll be able to shoot it around mid September.
The collection
I made a collection out of my Cygnus images. Pictures are taken between 2007-2013 with different instruments. Closeups are taken with my longer focal length instrument, an old Meade LX200 12" telescope. Wider field images are taken by using two camera lenses, Tokina AT-X 300 f2.8 and Canon EF 200mm f1.8 lens, both full open. All images are shot with QHY9 astronomical camera and the Baader narrowband filter set, H-alpha, Oxygen and Sulfur.
Be sure to click the image to see it in full scale!
Note. a large image, ~7MB
A collection of my images of constellation Cygnus. Photos are shot between 2007-2013.
The top most image is a large 18-panels mosaic of Cygnus, it spans 22x14 degrees of sky! (An apparent size of the full Moon fits in this area over 1200 times.) At middle, there are images of individual objects. All but the Veil nebula supernova remnant, can be seen in top most image.
At the bottom , there is a single panoramic image of "Cirrus of Cygnus", it's from the top part of the large mosaic at a top. I added it as an individual image, since it's full of very dim filaments of gas, the formation is over 1000 light years long. I haven't seen a separate color image of this are before.
Technical data and other information
You will found all the images in this collection from my portfolio with technical details.
http://astroanarchy.zenfolio.com/
Collection of images from the Veil nebula supernova remnant
Note. a large image, ~3MB
http://astroanarchy.blogspot.fi/2012/11/veil-nebula-collection-as-poster.html
The Cygnus mosaic
Note. A large image 2200x1400 pixels and ~5MB.
A Chinese Dragon Nebula
Original blog post here: http://astroanarchy.blogspot.fi/2012/11/a-chinese-dragon.html
Orientation
Monday, August 19, 2013
A two frame mosaic image, from Butterfly to the Crescent Nebula
I'm posting this older photo, since it hasn't been posted as an individual image before.
This is a two frame mosaic from the constellation Cygnus, showing the Butterfly and Crescent Nebulae. Image is shot at Nov. 18. 2011.
This image is part of a much large, 18-panel, mosaic of the constellation Cygnus.
Butterfly and Crescent Nebulae
in constellation Cygnus
Click the image to see it in large scale!
Click the image to see it in large scale!
Buy a photographic print from HERE
Image is one part of this massive 18-panel mosaic of the Cygnus constellation
Note. A large image 2200x1400 pixels and ~5MB.
18-panel mosaic of the constellation Cygnus, image is in mapped colors. The area of interest. in top most photo. can be seen at middle of this large mosaic.
Buy a photographic print from HERE
Technical details can be seen behind the link bellow.
Note. A large image 2200x1400 pixels and ~5MB.
Buy a photographic print from HERE
Technical details can be seen behind the link bellow.
Tuesday, August 13, 2013
An experimental 3D-study of NGC 1499, the California Nebula
This is an experimental test with a 3D-conversion of my astronomical images. Only real elements from my original image are used, there is nothing added but the volumetric information!
NOTE. This is a personal vision about shapes and volumes, based on some scientific data and an artistic impression.
California Nebula as an experimental 3D-model
In constellation Perseus
This is a looped video, click to start and stop. Original movie is in HD1080p resolution.
My original image of the California Nebula is used for the animation
Click for the large image
http://astroanarchy.blogspot.fi/2012/02/california-nebula-ngc-1499-with-some.html
More 3D-experiments can be seen here:
http://www.astroanarchy.blogspot.fi/search/label/animations
Wednesday, July 24, 2013
Art ∩ Science = Wonder
My summer pause is still ongoing, next time we'll have an astronomical darkness at mid September, up here at 65N.
Astronomical imaging is a mixture of art, science and technique. The art part is the most important for me, even though my images are scientifically correct. I made an image to show, how I see my passion.
ART ∩ SCIENCE = WONDERS
Rosette Nebula in natural colors
INFO
My image of the Rosette Nebula is used for this poster. Original image with technical details can be seen in my portfolio: http://astroanarchy.zenfolio.com/p62690868/h6d02179f#h6d02179f
More information and images in my original blog post:
http://astroanarchy.blogspot.fi/2011/02/caldwell-49-rosette-nebula.html
Thursday, June 6, 2013
Pelican Nebula zoom in series and the scale in a sky
I have shot many targets with several focal lengths. Due to that, I will publish some of my material as image sets, with a different field of view and level of details. The fractal nature of our universe stands out nicely in this way and it will make the orientation more easy.
Many times, it's difficult to understand the image scale of astronomical images.
Therefore I have added a "Moon circle" in the images to show the angular scale in the sky. The full Moon has an angular size of ~30 arc minutes, that's equal to ~0,5 degrees.
Be sure to click for a full size image!
Note. a circle, size of the full moon, as a scale.
A largish image, 7.5MB and 1356x5487 pixels
The North America and Pelican nebulae can be seen at upper left corner.
Images used in this zoom in series
Technical details behind the links
- Part of the large, 18-panels, mosaic of the Cygnus, imaged with a Canon 200mm f1.8 lens, QHY9 astronomical camera and the Baader narrowband filters: http://astroanarchy.zenfolio.com/p1072219942/h1a60116f
- North America and the Pelican Nebulae, imaged with a Tokina AT-X 300mm f2.8 lens, QHY9 astronomical camera and the Baader narrowband filters: http://astroanarchy.zenfolio.com/p1072219942/h2c811434#h2c811434
- Part of the large, 18-panels, mosaic of the Cygnus, imaged with a Canon 200mm f1.8 lens, QHY9 astronomical camera and the Baader narrowband filters: http://astroanarchy.zenfolio.com/p1072219942/h3f92be2d#h3f92be2d
- A closeup of the Pelican Nebula, imaged with the Meade LX200 GPS 12" f5 telescope, QHY9 astronomical camera and the Baader narrowband filters: http://astroanarchy.zenfolio.com/p1072219942/h35663238#h35663238
Wednesday, May 22, 2013
Filaments of the Veil nebula, starless view
One of my starless astronomical image experiences, the Pickering's Triangle in Cygnus supernova remnant.
This area of the nebula is filled with colorful filaments, ionized sulfur and hydrogen are seen as green, golden hues, ionized oxygen can be seen as blue.
The complexity of filaments stands out nicely in this starless image.
An original image with the stars
Image is in mapped colors, from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Original blog post about this image, with the technical details, can be seen here:
http://astroanarchy.blogspot.fi/2012/11/pickerings-triangle-project-finalized.html
Orientation in the Veil Nebula SNR
INFO
Exposure and processing details
This area of the nebula is filled with colorful filaments, ionized sulfur and hydrogen are seen as green, golden hues, ionized oxygen can be seen as blue.
The Pickering's Triangle with a suppressed stars
A detail of the Veil Nebula supernova remnant
An original image with the stars
http://astroanarchy.blogspot.fi/2012/11/pickerings-triangle-project-finalized.html
Orientation in the Veil Nebula SNR
Area of interest is marked as a white rectangle, the apparent size of the Moon can be seen at lower right corner.
INFO
Pickering's Triangle, Simeis 3-188, is a small part of the Veil Nebula supernova remnant in constellation Cygnus.
Veil Nebula is a cloud of ionized gas and dust, leftovers from an exploded star. The star went off some 5000-8000 years ago at distance of about 1470 light years. This, relatively faint target, is difficult to image due to the large angular diameter, about three degrees, and a dense star field.
Exposure and processing details
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Levels, curves and color combine in PS CS3.
Optics, Meade LX200 GPS 12" @ f5
Camera, QHY9
Guiding, SXV-AO, an active optics unit, and Lodestar guide camera 8Hz
Image Scale, ~0,8 arc-seconds/pixel
15 x 1200s exposures for the H-alpha, emission of ionized Hydrogen = 5h
9 x 1200s exposures for the O-III, emission of ionized Oxygen = 3h
4x1200s exposures for the S-II, emission of ionized Sulfur = 1h 20min.
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