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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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Sunday, June 5, 2011

Messier 27, the "Dumbbell Nebula", apparent scale in the sky





I have shot many targets with several focal lengths. 
Due that, I will publish some of my material as an image sets, with different field of view and detail levels.
The fractal nature of our universe stands out nicely by this way and it will make the orientation more easy.

Many times, it's difficult to understand the image scale of astronomical images.
Due that, I will add a Moon circle in some of the images to show the angular scale in a sky. 
The full Moon has an angular size of ~30 arc minutes, that's equal to ~0,5 degrees.



Messier 27, the "Dumbbell Nebula"

Ra 19h 59m 36.340s Dec +22° 43′ 16.09″



NOTE. The size of the full Moon (0,5 degrees) is marked as a gray circle in all of the images.
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. Star colors are mixed from the NB channels, Red=H-a, G=O-III and B= 85%O-III + 15%H-a.This composition is very close to a visual spectrum.


One image of M27 is used to make this image series.
Original image and technical details can be found here:




Deep deep space, an anaglyph Red/Cyan 3D movie




NOTE!
You'll need Red/Cyan Eyeglasses to be able to see the movie as 3D.
If you have a Red and Blue filters, you can use them! Red goes to Left eye.



A ten minute still motion movie from a collection of my experimental 3D-astronomical objects.




Please note, there is a HD-selector, at lower Right corner of the window, set to 360p.
If you like to see the movie in higher resolution, use this selector. Maximum resolution of the movie is 1080p.
Double click the movie window to see it in full screen!

3D-images used in the movie and more can be found, in different 3D-formats, from my portfolio.

All the material in this movie have been imaged and converted by me. Original 2D-images used for the movie, can be found here: http://astroanarchy.zenfolio.com/



Saturday, June 4, 2011

IC1848, the "Soul Nebula", apparent scale in the sky





I have shot many targets with several focal lengths. 
Due that, I will publish some of my material as an image sets, with different field of view and detail levels.
The fractal nature of our universe stands out nicely by this way and it will make the orientation more easy.

Many times, it's difficult to understand the image scale of astronomical images.
Due that, I will add a Moon circle in some of the images to show the angular scale in a sky. 
The full Moon has an angular size of ~30 arc minutes, that's equal to ~0,5 degrees.



IC 1848 zoom in
In constellation Cassiopeia




Image is in HST-palette from the emission of ionized elements, R=Sulfur,
 G=Hydrogen and B=Oxygen. NOTE. The size of the full Moon (0,5 degrees) is marked as a gray circle in all of the images.


IC 1848, second zoom in


NOTE. The size of the full Moon (0,5 degrees) is marked as a gray circle in all of the images.
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. Star colors are mixed from the NB channels, Red=H-a, G=O-III and B= 85%O-III + 15%H-a.This composition is very close to a visual spectrum.


Images used in the series above from top to bottom



  1. 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!).
  2. A medium wide field image is shot with a Tokina AT-X 300mm f2.8 camera lens and a QHY9, a cooled astronomical camera. Baader narrowband filter set, total exposure time was ~5 hours .
  3. Last image was shot with a Meade LX200 GPS 12" telescope @ f0.5 and a QHY9, a cooled astronomical camera.Baader narrowband filter set, total exposure time was ~2,5 hours. 
Links to the original images, used in series, from top to bottom

A panorama mosaic from the IC1396 to Sharpless 129




While making scale studies from various objects, I did make some new panoramas from archived images.
I will publish some of them as an individual images, comments and suggestions are welcome.


Panorama, from IC 1396, the "Elephant's Trunk Nebula" to the Sh2-129 
In constellation Cepheus

Image is in HST-palette from an 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. Star colors are mixed from the NB channels, Red=H-a, G=O-III and B= 85%O-III + 15%H-a.This composition is very close to a visual spectrum.



There are two individual images used to make this panoramic image:

  1. IC 1396, http://astroanarchy.blogspot.com/2011/01/ic-1396-reprocessed.html
  2. Sharpless 129, http://astroanarchy.blogspot.com/2008/03/sh2-129.html 
  3. some data from newer image of Sh2-129, http://astroanarchy.blogspot.com/2011/01/sh2-129-reprocessed.html
Technical details for the images above

Sh2-129 Imaging data:
  Optics: Canon FD 200mm f2.8 lens with full aperature
- Camera: QHY8
- Platform and guiding: LX200 GPS 12" with QHY5 guider and PHD-guiding
- Exposures: 6 x 1800s H-alpha +4 x 600s RGB + Flats and Bias frames, no darks
- Filter: Baader 7nm H-alp + IDAS LP for RGB

IC 1396  Imaging data:
 Camera, QHY8
Filters, Baader 7nm H-alpha, Baader 8,5nm O-III and Baader 8nm S-II
-Optics, Tokina AT-X 300mm @ f2.8
-Exposures, 7X 1200s H-alpha, 8 X 1200 O-III and 3X1200s S-II + flats and bias
Guiding, LX200 GPS 12" + PHD-guiding and Lodestar