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All the material on this website is copyrighted to J-P Metsavainio, if not otherwise stated. Any content on this website may not be reproduced without the author’s permission.

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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. 
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

Info and image details for each photo can be found from HERE


Images shot with Tokina AT-X 300mm f2.8 camera lens.
QHY9 astrocamera and the Baader narrowband filters

Info and image details for each photo can be found from HERE


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.
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.





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)

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.






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)

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.
Original 2D-image and technical details can be seen HERE.


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 Western Cygnus, a two frame mosaic. Color image and info can be seen HERE



Filaments of Western Cygnus, a two frame mosaic. Color image and info can be seen HERE



Filaments of Central Cygnus, a two frame mosaic. Color image and info can be seen HERE



Filaments of Western Cygnus. 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 Eastern 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)

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.






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)


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.


Location in Cygnus

Area of interest is marked as a white regtangle in this older wide field image of the area.
More info about this photo can be found HERE.






Sunday, April 24, 2016

The Elephant's Trunk in IC 1396 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.

Elephant's Trunk nebula as a freeview stereo pairs
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.
Original 2D-image and technical details can be seen HERE.

Closeup




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.

Closeup





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, and 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. ( Look previous image, above this text.) 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 blueish 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 23, 2016

Elephant's Trunk nebula without stars


Now and then I publish experimental starless versions of my photos. They have a special eerie feel in them but they also reveal more details in the actual nebula. I haven't developed the star removal technique just for playing with it. It's used in my Tone Mapping image processing technique as a tool. I'm also using it as a very effective tool, when I like to hunt down dim and diffused details under a dense starfield of the Milky Way.

Elephant's Trunk nebula without stars
Click for a large image

 A blog post about the original version with stars and technical details, can be found from HERE.

A closeup
Click for a large image




 

Friday, April 22, 2016

Who turn out the lights? Sharpless 114 with and without stars


Now and then I publish experimental starless versions of my photos. They have a special eerie feel in them but they also reveal more details in the actual nebula. This time I made a small animation out of the Sharpless 114 (Sh2-114) in Eastern Cygnus.

Sharpless 114 with and without stars
To see the details, you really should click the image large!

It's easy to see how much more details are visible in a starless version. Especially the very dim  ones stand out better. A blog post about this photo, with the technical detail, can be found from HERE.
Note. The blue dot at top right is a planetary nebula Kn 26.

Why star removal?

I haven't developed the star removal technique just for playing with it. It's used in my Tone Mapping image processing technique as a tool. I'm also using it as a tool, when I like to hunt down dim and diffused details under a dense starfield of the Milky Way.






Wednesday, April 20, 2016

Filaments of the Western Cygnus in stereo, an experimental 3D-study


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.

Sh2-224 as a freeview stereo pairs
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.
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, and 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. ( Look previous image, above this text.) 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 blueish 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, April 19, 2016

An experimental starless view to the Pickering's Triangle


Now and then I publish experimental starless versions of my photos. They have a special eerie feel in them but they also reveal more details in the actual nebula. To see the details, you really should click the image large!

 
Pickering's Triangle SNR with no stars
Please, click for a large image, 1700 x 1500 pixels

Pickering's Triangle is a part of Veil Nebula supernova remnant in Cygnus


Pickering's Triangle SNR untouched
Please, click for a large image, 1700 x 1500 pixels

Info about this image HERE