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Thursday, September 3, 2015

Something new! My first light from The Deep Sky West (DSW) remote observatory


The imaging season, up here 65N, hasn't start yet. I have had a wonderful opportunity to use couple of remote telescopes. One in Canary islands and the other in New Mexico. I'll publish more images from both telescopes soon.

The first photo published is from Deep Sky West observatory. It's taken under a very dark skie. Unlike in my current light polluted location, it's now possible to image broadband targets, like galaxies, reflection nebulae and dark nebulae! HERE is some more info about the Deep sky West Observatory


LDN 1250
In constellation Cepheus, click for a large image


A natural color LRGB photo of  the dark nebula LDN 1250 in Cepheus


A closeup
Click for a large image





An experimental starless photo of LDN 1250 as an animation

The nebula stands out nicely without stars. There are couple of much more distant galaxies at the image. One at right most left and the other at upper left from middle.

Technical details

Processing work flow

Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 33% weight
Color combine in PS CS3
Levels and curves in PS CS3.

Imaging optics
 Takahashi FSQ-106EDXIII

Mount
 Astro-Physics Mach1AP GTO with GTOCP3

Cameras and filters
Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel
Guider camera, Lodestar

Astrodon Luminance Tru-Balance E-Series Gen
Astrodon Red Tru-Balance E-Series Gen 2
Astrodon Green Tru-Balance E-Series Gen 2
Astrodon Blue Tru-Balance E-Series Gen 2

Exposure times
Luminance, 26 x 900s = 6.5h
Red = 14 x 900s = 3.5h
Green = 14 x 900s = 3.5h
Blue = 14 x 900s = 3.5h
Total 17h


A single calibrated and stretched 15 min. Luminance frame as it comes from the camera
Click for a large image



Monday, August 3, 2015

A large collection of my experimental 3D-astronomy as a movie


This is an experimental test with a 3D-conversion of my astronomical image. Only real elements from the original images 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.

A deep deep space
A HD video, ~11 min.


 Original movie is in HD 1080p resolution. 
Please, click the Youtube logo at lower right to see this video in Youtube. 
In youtube,  click the Gear symbol, at lower right in Youtube window, and select the Quality to 1080p.
Then watch the video in full screen for the best viewing experience.
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.




Friday, July 31, 2015

An experimental 3D-study of an emission nebula Melotte 15


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.

My original photo of the Melotte 15 in IC 1805
click for a large image

A blog post about this photo, with the technical details, can be seen HERE


An animated GIF







Video 1


This is a looped video, click to start and stop. Original movie is in HD720p resolution.



Video 2


This is a looped video, click to start and stop. Original movie is in HD720p resolution.



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.



Tuesday, July 28, 2015

An experimental 3D-study of an emission nebula IC 410


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.

My original photo of the IC 410
click for a large image

A blog post about this photo, with the technical details, can be seen HERE


An animated GIF




A flythrough video


This is a looped video, click to start and stop. Original movie is in HD720p resolution.
¨

A flyby video


This is a looped video, click to start and stop. Original movie is in HD720p resolution.


A study about the general structure of the IC 410

All pillar like formations are pointing to a source of ionization, the open cluster NGC 1893 at the heart of the IC 410. There are some more dense areas in a gas, able to resist the radiation pressure from young star cluster. Those dense areas, at tip of the pillars, are also potential places for the formations of the new stars. A radiation pressure (solar wind) from the cluster NGC 1893 is forming a hollow space inside a gas cloud, it  can be seen in my 3D-studies too.


Stereo images of the IC 410
Parallel and Cross vision stereo pairs. An anaglyph Red/Cyan image (Red/Cyan eyeglasses are needed)
http://astroanarchy.blogspot.fi/2015/02/a-3d-study-of-ic-410-as-free-view.html

A Cross vision stereo pair as a sample, other formats behind the link above.


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.