Monday, August 22, 2016
Pickering's Triangle reprocessed
This shot about the Pickering's Triangle was my opening image for the Autumn season 2015.
It was also selected for a Astronomy Picture of the Day (APOD) by the NASA.
I'm waiting to new imaging season to start. To practise my astronomical image processing skills, I have reprocessed the whole dataset, about 20 hours of exposures.
Be sure to click for a large image!
A closeup
Be sure to click for a large image!
An experimental starless version
Be sure to click for a large image!
The whole two frame mosaic in cinemascope format
Be sure to click for a large image!
A wide field photo shows the whole Veil Nebula supernova remnant
The Pickering's Triangle can be see at one o'clock position.
My blog post about the wide field shot can be seen HERE.
Technical details
Processing work flow
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 33% weight
Color combine in PS CS3
Levels and curves in PS CS3.
Imaging optics
Celestron Edge HD 1100 @ f7 with 0,7 focal reducer for Edge HD 1100 telescope
Mount
10-micron 1000
Cameras and filters
Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel
Guider camera, Lodestar x2 and SXV-AOL
Astrodon filter, 5nm H-alpha
Astrodon filter, 3nm O-III
Astrodon filter, 3nm S-II
Exposure times
H-alpha, 15 x 1200s = 5h
O-III, 36 x 1200s binned = 12h (Autumn 2014)
S-II, from my older wide field photo of the Veil Nebula = 3h
Total 20h
Astro anarchy gets published, Large print of the central Cygnus
This large 100 x 400 cm (3.3 x 13.2 feets) print out of my photo of the Cygnus is located in Creative Laboratory (Luova Laboratorio) Oulu, Finland.
A large print
Please, click for a full size photo
This is a very high resolution mosaic image and it can be printed even much larger scale without losing any sharpness. The printed photo is actually a part from a large mosaic picture of constellation Cygnus. The whole 18-panels mosaic can be seen HERE
Older large public artworks out of my photos
Path of Swans, Svenska Private School, Oulu, Finland, 2014
Print on aluminium, 360 x 160 (142 x 63 inch) More info HERE
Saturday, August 20, 2016
An experimental 3D-study of the Great galaxy of Andromeda, M31
This is an experimental test with a 3D-conversion of my astronomical image. Only real elements from the original image are used, there is nothing added but the estimated volumetric information!
NOTE. This is a personal vision about shapes and volumes, based on some scientific data, deduction and an artistic impression.
Video
This is a looped video, click to start and stop. Original movie is in HD 1080p resolution.
All the foreground stars from the original image are removed. Starlike objects seen in this animation are actually globular clusters orbiting the Andromeda Galaxy. Click the YouTube logo at lower right corner to see this video in YouTube at full screen, you should set quality to HD 1080p,Original 2d-image used for this 3d-study
Info about the technique used
Due to huge distances, real parallax can't be imaged in most of the astronomical objects.
I have developed an experimental technique to convert my astropics to a artificial volumetric models.
My 3-D experiments are a mixture of science and an artistic impression. I collect distance and other information before I do my 3-D conversion. Usually there are known stars, coursing the ionization, so I can place them at right relative distance. If I know a distance to the nebula, I can fine tune distances of the stars so, that right amount of stars are front and behind of the object.
I use a “rule of thumb” method for stars: brighter is closer, but if a real distance is known, I'm using that. Many 3-D shapes can be figured out just by looking carefully the structures in nebula, such as dark nebulae must be at front of the emission nebulae in order to show up etc...
The general structure of many star forming regions is very same, there is a group of young stars, as an open cluster inside of the nebula. The stellar wind from the stars is then blowing the gas away around the cluster and forming a kind of cavitation – or a hole — around it. The pillar-like formations in the nebula must point to a source of stellar wind, for the same reason.
How accurate the final model is, depends how much I have known and guessed right. The motivation to make those 3-D-studies is just to show, that objects in the images are not like paintings on the canvas but really three dimensional objects floating in the three dimensional space. This generally adds a new dimension to my hobby as an astronomical imager.
Wednesday, August 17, 2016
Cinemascope format panoramas from my astro photos
I have worked with a cinemascope format movie theatre presentation from my photos. This is an extra wide ~21:9 format used in theaters. The actual film is not ready yet but I have some of my images converted to this ultra wide format. I think they will look great at a large movie screen! I'll publish some of individual panoramic format photos here, images are downscaled for the web.
Cinemascope format details from the Veil Nebula supernova remnant
Witch's Broom Nebula (Western Veil)
Be sure to click for a full resolution version!
Pickering's Triangle
Be sure to click for a full resolution version!
An older wide field shot about the whole Veil nebula supernova remnant
Monday, August 15, 2016
New imaging season about to start
The mandatory Summer pause will be over soon. We'll have astronomical darkness again at September 5. up here 65N. After that, I'll be able to shoot some new material.
I have made a poster format collection out of my images, with different instruments. Photos are shot between 2005 and 2016. An average exposure time per photo is around 25h. The actual exposure times varies between10 to 150 hours.
My photos between years 2005 and 2016.
Images in four posters are shot with different instruments.
Images in four posters are shot with different instruments.
Please, click the posters to see them in full scale!
Images shot with Canon EF 200mm f1.8 camera lens.
QHY9 astrocamera and the Baader narrowband filters
Images shot with Tokina AT-X 300mm f2.8 camera lens.
QHY9 astrocamera and the Baader narrowband filters
Images shot with Meade LX200 GPS 12" @ ~f6 telescope.
QHY9 astrocamera and the Baader narrowband filters
Images shot with Celestron Edge HD 1100 telescope.
Apogee Alta U16 and Astrodon narrowband filters
Tuesday, May 10, 2016
An experimental 3D-stereo pictures of Pickering's Triangle
We are permanently out of astronomical darkness, up here 65N, for about six months. I will publish some more experimental material during this period of time. All my experiments are based on photos shot by me.
Pickering's Triangle as a freeview stereo pairs
Click for a large image
Images are for two different viewing methods, the first set of images is for the Parallel Vision method and the second set for the Cross Vision method. Viewing instructions can be seen HERE.
NOTE! This is a personal vision about forms and shapes, based on some scientific facts, deduction and an artistic impression. A short explanation, about the method used for the 3D conversion of my astrophoto, at the end of this post.
For a parallel viewing method (Eyes parallel to each other)
Image pair for the Parallel Vision viewing method, click for a large image.
For a cross vision viewing method (Eyes crossed)
Image pair for the Cross Vision viewing method, click for a large image.
Original 2D-image and technical details can be seen HERE.
HOW?
All the original 2D-images are imaged by me, if not otherwise stated.
Due the huge distances, no real parallax can be imaged for a volumetric information.
I have developed a method to turn any 2D-astronomical image to a various 3D-formats. The result is always an approximation of the reality, based on some known scientific facts, deduction and an artistic impression.
What are the known facts?
By using a scientifically estimated distance of the object, I can organize right amount of stars front and behind the object. (as then we know the absolute position of the object at our Milky-way)
Stars are divided to groups by apparent brightness, that can be used as a draft distance indicator, brighter the closer. There is usually a known star cluster or a star(s) coursing the ionization and they can be placed in right relative position to the nebula itself .
Generally emission nebulae are not lit by the starlight directly but radiation from stars ionizing gases in the nebula. Hence the nebula itself is emitting its own light, at wavelength typical to each element. Due to that, the thickness of the nebula can be estimated by its brightness, thicker = brighter. Nebulae are also more or less transparent, so we can see "both sides" at the same time.
Many other relative distances can be figured out just carefully studying the image, like dark nebulae must be front of bright ones. The local stellar wind, radiation pressure, from the star cluster, shapes the nebula, For that reason, pillar like formations must point to a cluster. Same radiation pressure usually forms kind of cavitation, at the nebulosa, around the star cluster, by blowing away all the gas around the source of stellar wind. The ionized oxygen, O-III, emits bluish light, it requires lots of energy to ionize. Due to that, the blue glowing area locates usually near the source of ionization, at the heart of the nebula. This and many other small indicators can be found by carefully studying the image itself.
Using the known data, I can build a kind of skeleton model of the nebula. Then the artistic part is mixed to a scientific part, rest is very much like a sculpting.
Tuesday, May 3, 2016
An experimental 3D-stereo pictures of IC 1805, the Heart Nebula
Images are for two different viewing methods, the first set of images is for the Parallel Vision method and the second set for the Cross Vision method. Viewing instructions can be seen HERE.
NOTE! This is a personal vision about forms and shapes, based on some scientific facts, deduction and an artistic impression. A short explanation, about the method used for the 3D conversion of my astrophoto, at the end of this post.
heart nebula, IC 1805, as a freeview stereo pairs
Click for a large image
For a parallel viewing method (Eyes parallel to each other)
For a parallel viewing method (Eyes parallel to each other)
Image pair for the Parallel Vision viewing method, click for a large image.
Original 2D-image and technical details can be seen HERE.
For a cross vision viewing method (Eyes crossed)
Image pair for the Cross Vision viewing method, click for a large image.
Original 2D-image and technical details can be seen HERE.
HOW?
All the original 2D-images are imaged by me, if not otherwise stated.
Due the huge distances, no real parallax can be imaged for a volumetric information.
I have developed a method to turn any 2D-astronomical image to a various 3D-formats. The result is always an approximation of the reality, based on some known scientific facts, deduction and an artistic impression.
What are the known facts?
By using a scientifically estimated distance of the object, I can organize right amount of stars front and behind the object. (as then we know the absolute position of the object at our Milky-way)
Stars are divided to groups by apparent brightness, that can be used as a draft distance indicator, brighter the closer. There is usually a known star cluster or a star(s) coursing the ionization and they can be placed in right relative position to the nebula itself .
Generally emission nebulae are not lit by the starlight directly but radiation from stars ionizing gases in the nebula. Hence the nebula itself is emitting its own light, at wavelength typical to each element. Due to that, the thickness of the nebula can be estimated by its brightness, thicker = brighter. Nebulae are also more or less transparent, so we can see "both sides" at the same time.
Many other relative distances can be figured out just carefully studying the image, like dark nebulae must be front of bright ones. The local stellar wind, radiation pressure, from the star cluster, shapes the nebula, For that reason, pillar like formations must point to a cluster. Same radiation pressure usually forms kind of cavitation, at the nebulosa, around the star cluster, by blowing away all the gas around the source of stellar wind. The ionized oxygen, O-III, emits bluish light, it requires lots of energy to ionize. Due to that, the blue glowing area locates usually near the source of ionization, at the heart of the nebula. This and many other small indicators can be found by carefully studying the image itself.
Using the known data, I can build a kind of skeleton model of the nebula. Then the artistic part is mixed to a scientific part, rest is very much like a sculpting.
Saturday, April 30, 2016
Hauskaa Vappua, Happy May day!
Iloista Vappua kaikille!
Happy may Day to all!
Big balloon , The Bubble Nebula, more info HERE
It's my hand in the image and no, this is not a proof about intelligent design!
This must be a largest balloon in the known universe, the string alone is about 15 light years long.
Happy may Day to all!
It's my hand in the image and no, this is not a proof about intelligent design!
This must be a largest balloon in the known universe, the string alone is about 15 light years long.
Friday, April 29, 2016
An experimental 3D-stereo pictures of Melotte 15
Images are for two different viewing methods, the first set of images is for the Parallel Vision method and the second set for the Cross Vision method. Viewing instructions can be seen HERE.
NOTE! This is a personal vision about forms and shapes, based on some scientific facts, deduction and an artistic impression. A short explanation, about the method used for the 3D conversion of my astrophoto, at the end of this post.
Melotte 15 as a freeview stereo pairs with no Stars
Click for a large image
For a parallel viewing method (Eyes parallel to each other)
For a cross vision viewing method (Eyes crossed)
For a parallel viewing method (Eyes parallel to each other)
For a cross vision viewing method (Eyes crossed)
For a parallel viewing method (Eyes parallel to each other)
Image pair for the Parallel Vision viewing method, click for a large image.
Original 2D-image and technical details can be seen HERE.
For a cross vision viewing method (Eyes crossed)
Melotte 15 as a freeview stereo pairs with Stars
Click for a large image
For a parallel viewing method (Eyes parallel to each other)
Image pair for the Parallel Vision viewing method, click for a large image.
For a cross vision viewing method (Eyes crossed)
HOW?
All the original 2D-images are imaged by me, if not otherwise stated.
Due the huge distances, no real parallax can be imaged for a volumetric information.
I have developed a method to turn any 2D-astronomical image to a various 3D-formats. The result is always an approximation of the reality, based on some known scientific facts, deduction and an artistic impression.
What are the known facts?
By using a scientifically estimated distance of the object, I can organize right amount of stars front and behind the object. (as then we know the absolute position of the object at our Milky-way)
Stars are divided to groups by apparent brightness, that can be used as a draft distance indicator, brighter the closer. There is usually a known star cluster or a star(s) coursing the ionization and they can be placed in right relative position to the nebula itself .
Generally emission nebulae are not lit by the starlight directly but radiation from stars ionizing gases in the nebula. Hence the nebula itself is emitting its own light, at wavelength typical to each element. Due to that, the thickness of the nebula can be estimated by its brightness, thicker = brighter. Nebulae are also more or less transparent, so we can see "both sides" at the same time.
Many other relative distances can be figured out just carefully studying the image, like dark nebulae must be front of bright ones. The local stellar wind, radiation pressure, from the star cluster, shapes the nebula, For that reason, pillar like formations must point to a cluster. Same radiation pressure usually forms kind of cavitation, at the nebulosa, around the star cluster, by blowing away all the gas around the source of stellar wind. The ionized oxygen, O-III, emits bluish light, it requires lots of energy to ionize. Due to that, the blue glowing area locates usually near the source of ionization, at the heart of the nebula. This and many other small indicators can be found by carefully studying the image itself.
Using the known data, I can build a kind of skeleton model of the nebula. Then the artistic part is mixed to a scientific part, rest is very much like a sculpting.
Thursday, April 28, 2016
A collection of grayscale photos, Filaments of Cygnus
I haven't published any grayscale photos for a long time. Astronomical cameras are usually grayscale CCD-cameras since they have a better sensitivity and resolution. I have grayscale versions from all of my astronomical images. I have always been a big fan of grayscale images!
(Color images are not colorized, each RGB color channel is shot separately and combined to a final color image.)
A collection of filamental structures in Cygnus
During past year or so I have shot dim and less known filamental objects in constellation Cygnus. In this collection there are many of them as a grayscale photos.
Please, click for a large image!
Filaments of Central Cygnus, a two frame mosaic. Color image and info can be seen HERE
A wide field image mosaic of the whole Western Cygnus. Color image and info can be seen HERE
Filaments of Cygnus, a two frame mosaic of Veil Nebula supernova remnant. Color image and info can be seen HERE
Filaments of Cygnus, Veil Nebula supernova remnant. Color image and info can be seen HERE
Tuesday, April 26, 2016
Sharpless 114, the Flying Dragon Nebula, as an experimental 3D-stereo pictures.
Images are for two different viewing methods, the first set of images is for the Parallel Vision method and the second set for the Cross Vision method. Viewing instructions can be seen HERE.
NOTE! This is a personal vision about forms and shapes, based on some scientific facts, deduction and an artistic impression. A short explanation, about the method used for the 3D conversion of my astrophoto, at the end of this post.
Flying Dragon nebula, Sh2-114, as a freeview stereo pairs
Click for a large image
For a parallel viewing method (Eyes parallel to each other)
For a cross vision viewing method (Eyes crossed)
Image pair for the Cross Vision viewing method, click for a large image.
For a parallel viewing method (Eyes parallel to each other)
Image pair for the Parallel Vision viewing method, click for a large image.
For a cross vision viewing method (Eyes crossed)
HOW?
All the original 2D-images are imaged by me, if not otherwise stated.
Due the huge distances, no real parallax can be imaged for a volumetric information.
I have developed a method to turn any 2D-astronomical image to a various 3D-formats. The result is always an approximation of the reality, based on some known scientific facts, deduction and an artistic impression.
What are the known facts?
By using a scientifically estimated distance of the object, I can organize right amount of stars front and behind the object. (as then we know the absolute position of the object at our Milky-way)
Stars are divided to groups by apparent brightness, that can be used as a draft distance indicator, brighter the closer. There is usually a known star cluster or a star(s) coursing the ionization and they can be placed in right relative position to the nebula itself .
Generally emission nebulae are not lit by the starlight directly but radiation from stars ionizing gases in the nebula. Hence the nebula itself is emitting its own light, at wavelength typical to each element. Due to that, the thickness of the nebula can be estimated by its brightness, thicker = brighter. Nebulae are also more or less transparent, so we can see "both sides" at the same time.
Many other relative distances can be figured out just carefully studying the image, like dark nebulae must be front of bright ones. The local stellar wind, radiation pressure, from the star cluster, shapes the nebula, For that reason, pillar like formations must point to a cluster. Same radiation pressure usually forms kind of cavitation, at the nebulosa, around the star cluster, by blowing away all the gas around the source of stellar wind. The ionized oxygen, O-III, emits bluish light, it requires lots of energy to ionize. Due to that, the blue glowing area locates usually near the source of ionization, at the heart of the nebula. This and many other small indicators can be found by carefully studying the image itself.
Using the known data, I can build a kind of skeleton model of the nebula. Then the artistic part is mixed to a scientific part, rest is very much like a sculpting.
Monday, April 25, 2016
Filaments of the central Cygnus as an experimental 3D-stereo pictures
Images are for two different viewing methods, the first set of images is for the Parallel Vision method and the second set for the Cross Vision method. Viewing instructions can be seen HERE.
NOTE! This is a personal vision about forms and shapes, based on some scientific facts, deduction and an artistic impression. A short explanation, about the method used for the 3D conversion of my astrophoto, at the end of this post.
Filaments of the Central Cygnus as a freeview stereo pairs
Click for a large image
For a parallel vision viewing method (Eyes parallel to each other)
For a parallel vision viewing method (Eyes parallel to each other)
Image pair for the Parallel Vision viewing method, click for a large image.
For a cross vision viewing method (Eyes crossed)
Image pair for the Cross Vision viewing method, click for a large image.
Original 2D-image and technical details can be seen HERE.
Location in Cygnus
More info about this photo can be found HERE.
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