Thursday, August 4, 2011
The "Heart Nebula", IC 1805, reprocessed
Since my processing technique gets better and the time of year doesn't give any support, I have reprocessed some older images. There is now star colors added and other processing is tweaked too.
Wide field shot of IC1805 with the "Soull Nebula", IC1848
HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission. This composition is very close to a visual spectrum.
IC 1805, Sharpless 190 (Sh2-190) in Cassiopeia
Ra 02h 32m 36s Dec +61° 29′ 2″
HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
The "Heart Nebula", IC1805 locates about 7500 light years away in constellation Cassiopeia. This is an emission nebula showing glow of ionized elements in a gas cloud and some darker dust lanes.
In a very center of the nebula, lays Melotte 15, it contains few very bright stars, nearly 50 times mass of our Sun, and many dim ones. The solar wind, a radiation pressure, from massive stars makes the gas twist to a various shapes.
Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission. This composition is very close to a visual spectrum.
The "Heart of the Heart, Melotte 15
HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission. This composition is very close to a visual spectrum.
The scale in a sky, a zoom in series
NOTE. The size of the full Moon (0,5 degrees) is marked as a gray circle in all of the images.
Images used in the series above from top to bottom
A wide field image from 2008. with a Canon FD 200mm f2.8 camera lens and a QHY8, a cooled astronomical camera with a H-alpha and UHC-s filters. Total exposure time ~2,5h
A wide field image of the area, covering about 5 degrees, ~300', of the sky. (Ten full Moons side by side)
IC 1805, the "Heart Nebula", locates at upper Right and IC 1848 can be seen at lower Left. Image is shot with a Canon EF 200mm f1.8 camera lens and a QHY9, a cooled astronomical camera.
Baader narrowband filter set, total exposure time was ~1,5 hours (A very fast lens was used!).
A medium wide field shot with a Sky Watcher 80ED f7.5 telescope and QHY8 astronomical camera + UHC-s filter. Total exposure time ~3,5h
Last image was shot with a Meade LX200 GPS 12" telescope @ f6,5 and a QHY8, a cooled astronomical camera with a H-alpha and UHC-s filters. Total exposure time ~7h.
Technical details
and here:
I have used some material from my wider field images for colors and some dimmer details.
Sunday, July 31, 2011
NGC 281, The "Pac-Man Nebula", reprocessed
Since my processing technique gets better and the time of year doesn't give any support, I have reprocessed some older images. There is now star colors added and other processing is tweaked too.
NGC 281, in Cassiopeia
Ra 00h 52m 59.3s Dec +56° 37′ 19″
HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
NGC 281 is an H II region in the constellation of Cassiopeia. It includes the open cluster IC 1590 and several Bok globules (dark doo-dads at center of the Blue area). NGC 281 is also known as thePacman Nebula for its resemblance to the video game character from early 80's.NGC281 spans over 80 light years at its estimated distance of 9500 light years.
Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission. This composition is very close to a visual spectrum.
Buy a photographic print from HERE
Experimental 3D-studies of NGC 281
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations.
Levels, curves and color combine in PS CS3.
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Telescope, Meade LX200 GPS 12" @ f4.65
Camera, QHY9
Guiding, SXV-AO @ 11Hz
Image Scale, 0,8 arcseconds/pixel
Exposures:
H-alpha 6x1200s Binned 1x1
O-III 3x600s, binned 3x3
S-II 4x1200s, binned 3x3
More of my 3D-studies can be seen in my portfolio:
Parallel vision stereo pair:
Cross vision Stereo pair:
An anaglyph 3D, Note, Red/Cyan eyeglasses are needed.
If you have difficulties to see any 3D-format above, here is an animated version:
(Second animation in a page)
http://astroanarchy.blogspot.com/2010/01/new-3d-animations-from-deep-space.html
NOTE!
This is a personal vision about forms and shapes, based on my 2D-images, some known facts and artistic impression.
Saturday, July 30, 2011
A 3D-anaglyph slideshow of my experimental astronomical studies
3D-NOTE!
You'll need Red/Cyan Eyeglasses to be able to see images as 3D.
If you have a Red and Blue filters, you can use them! Red goes to Left eye.
Click "Play" to see the slideshow
NOTE. If you'll find a slideshow above slow, please try this lighter one instead:
http://www.flickr.com/photos/34889849@N03/sets/72157622794773812/show/
NOTE. If you'll find a slideshow above slow, please try this lighter one instead:
http://www.flickr.com/photos/34889849@N03/sets/72157622794773812/show/
All the original 2D-images are imaged by me.
Due the huge distances, no real parallax can be imaged to form a volumetric information.
I have developed a method to turn any 2D-astronomical image to a various 3D-formats.
Shapes are based on some known facts and an artistic impression.
AN ANAGLYPH 3D-PORTFOLIO
All the images in this slideshow can be found from my portfolio, in large scale.
Please, click the "slideshow" button at upper Right corner to see images in full screen.
OTHER 3D-FORMATS
Parallel and the Cross vision 3D-stereo pairs
A COLLECTION OF 2D-IMAGES USED FOR THE 3d-MATERIAL
IC 410, a "cosmic fertilization", reprocessed
Since my processing technique gets better and the time of year doesn't give any support, I have reprocessed some older images. There is now star colors added and other processing is tweaked too.
IC 410, in Auriga
Ra 05h 22m 39s Dec -33° 31′ 01″
HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Emission nebula IC 410 and an open cluster, NGC1893, inside it are located in constellation Auriga about 12.000 light years from my home town Oulu in Finland. The cloud of glowing gas is over 100 light-years across, sculpted by stellar winds and radiation from embedded open star cluster NGC 1893.
"Cosmic tadpoles" are potentially sites of ongoing star formation, they are about 10 light-years long.
Emission from sulfur atoms is shown in red, hydrogen atoms in green, and oxygen in blue hues in this false-color, narrow band composite image above.
Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission. This composition is very close to a visual spectrum.
Original processing can be seen from here:
A study about an apparent scale in a sky
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations.
Levels, curves and color combine in PS CS3.
-
Telescope, Meade LX200 GPS 12" @ f5
Camera, QHY9
Guiding, SXV-AO @ 8Hz
Image Scale, 1,5 arcseconds/pixel
-
Exposures:
H-alpha 7x1200s Binned 2x2a
O-III 4x600s, binned 3x3
S-II 3x600s, binned 3x3
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