Friday, October 19, 2012
EPIC
Testing of the theory
Any phrase looks epic, if placed in front of an astronomical image...
Image used at background is my first light for the Autumn season 2012.
Details can be seen here:
Ps.
I got this idea from Professor Matt McBee, thanks Matt.
Tuesday, October 16, 2012
IC 1340, project finalized
Finally, after waiting four weeks for a clear night, I was able to finalize this project last night by shooting the missing S-II channel (light from the ionized Sulfur)
IC 1340, Part of the Eastern Veil Nebula in Cygnus
RA: 20h56m 45.8s DE:+31 degrees07' 17"
Orientation
Note. an apparent size of the Moon is at lower Right corner.
The area of interest is shown with a rectangle and the size of the Moon with a circle.
Image in visual spectrum from the same material
R=Hydrogen + Sulfur, G=Oxygen and B=Oxygen + Hydrogen.
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
Image Scale, ~0,8 arc-seconds/pixel
16 x 1200s exposures for H-alpha emission = 5h 20min.
12 x 1200s exposures for O-III, emission of ionized Oxygen = 4h
12 x 1200s exposures for S-II, emission of ionized Sulfur = 4h
Total exposure time 13h 20min.
Ps.
Stars vs starless animation
Soetimes it's easier to see deatils in the nebula, if the stars are removed.
Monday, October 15, 2012
An experiental 3D-animation from my image of NGC 6752
I have tested a new method to publish my 3D-images as a form of Lenticular prints.
For this technique to work, I need series of images from different angles, in this case 24 images are needed.
Lenticular printing is actually an old technique but in past few years it has become much more sophisticated.
The results can be stunning visually, image plane disappears and object floats in and outside of the frame.
Since astronomical objects are too far away, no real parallax can be imaged. Doe to that, I have developed a method to turn my images to a various 3D-formats. My work flow is based on scientific data from the object, distance and the source of ionization are usually known. The different types of the nebulae has typical structures. Pillar like formations must point to the source of ionization. The radiation pressure forms kind of hollow area, inside of the nebula, around newly born stars. Dark nebulae must be at front of the emission ones to show, etc... Rest of the missing information is then replaced with an artistic vision.
The whole process is pretty much like sculpting!
NOTE! This is a personal vision about forms and shapes, based on some known facts and an artistic impression.
A globular cluster, NGC 6752, as an animated 3D-study
Please, let the image load, the size is ~6.5MB
24-frames, images are meant for a lenticular 3D-print. Hence only limited horizontal animation. If needed, I'm able to do whole "fly around" animation out of the same 3D-model, used for the image above.
NOTE. Only image elements from the original 2D-image are used for this 3D-model.
Original 2D image of the object
Image of the NGC 6752 from the year 2010
Original blog post, with technical info, can be seen here:
What are globular clusters?
First of all, they are very beautiful, visually and imaged! A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite. Globular clusters are very tightly bound by gravity, which gives them their spherical shapes and relatively high stellar densities toward their centers. The name of this category of star cluster is derived from the Latin globulus—a small sphere. A globular cluster is sometimes known more simply as a globular.
Globular clusters, which are found in the halo of a galaxy, contain considerably more stars and are much older than the less dense galactic, or open clusters, which are found in the disk. Globular clusters are fairly common; there are about 150 to 158 currently known globular clusters in the Milky Way.
Globular clusters, which are found in the halo of a galaxy, contain considerably more stars and are much older than the less dense galactic, or open clusters, which are found in the disk. Globular clusters are fairly common; there are about 150 to 158 currently known globular clusters in the Milky Way.
A screenshot from the 3D-modeling software
A screen shot from the TrueSpace modeling software. This kind of model gives much more freedoms to animate, than is used in this example. A series of 24 images, with about one degree increments, are needed for the lenticular 3D print.
A collection of my experimental 3D-studies, of astronomical objects, can be found from my portfolio:
3D-material is under a folder "Volumetric 3D images"
Tuesday, October 9, 2012
An experiental 3D-animation from my image of Veil Nebula SNR
I have tested a new method to publish my 3D-images as a form of Lenticular prints.
For this technique to work, I need series of images from different angles, in this case 24 images are needed.
Lenticular printing is actually an old technique but in past few years it has become much more sophisticated.
The results can be stunning visually, image plane disappears and object floats in and outside of the frame.
Since astronomical objects are too far away, no real parallax can be imaged. Doe to that, I have developed a method to turn my images to various 3D-formats. My work flow is based on scientific data from the object, distance and the source of ionization are usually known. The different types of the nebulae has typical structures, pillar like formations must point to the source of ionization, the radiation pressure forms kind of hollow area, inside of the nebula, around newly born stars, dark nebulae must be at front of the emission ones to show, etc... rest of the missing information is then replaced with an artistic vision.
The whole process is pretty much like sculpting!
Veil Nebula, supernova remnant, as an animation
Click for a large image
Click for a large image
Please, wait for few moments for animation to load, the size is ~7MB
NOTE. Only real data from the original 2D-image is used for the 3D-animation!
NOTE. Only real data from the original 2D-image is used for the 3D-animation!
This animation shows the estimated shape of the Veil Nebula. It has to be more or less spherical due to nature of the supernova explosion.
Generally images about space objects shows them flat as a paintings in a canvas but in reality, they are volumes floating in three dimensional space. The purpose of my work is to show how I personally see those distant objects in my mind and they are fun to do!
The accuracy of the model depends how well I have known, figured out and guessed. Right or wrong, if my 3D experiments are giving something to think, they are working well.
The accuracy of the model depends how well I have known, figured out and guessed. Right or wrong, if my 3D experiments are giving something to think, they are working well.
The original 2D-image of the Veil Nebula
I shot this image at Autumn season 2011. The blog post with information and technical details can be seen here: http://astroanarchy.blogspot.fi/2012/03/veil-nebula-reprocessed-with-some-new.html
Buy a photographic print from HERE
The apparent scale of the Veil Nebula
Many nebulae are very large in the sky. This image series shows the apparent size of the Veil Nebula compared to size of the Moon. (The full Moon has an angular size of ~30 arc minutes, that's equal to ~0,5 degrees.)
Click for a large image
Note. The apparent size of the Moon is marked as a white circle for a scale.
An experimental fly a round movie of Veil Nebula
Few years back I made a movie out of the Veil Nebula.
HD-format (720x1280) To see this in Youtube: KLICK HERE
Please, klick the "gear symbol" in Youtube to select high resolution. Double click the movie window to see it in full screen.
An experimental fly a round movie of Veil Nebula
Few years back I made a movie out of the Veil Nebula.
Please, klick the "gear symbol" in Youtube to select high resolution. Double click the movie window to see it in full screen.
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Original video can be downloaded from HERE
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