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.
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