Saturday, May 28, 2011
The "Crescent Nebula", NGC6888, 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.
NGC 6888, the "Crescent Nebula"
Ra 20h 12m 7s Dec +38° 21′ 3", in Cygnus
Images are in HST-palette, (HST=Hubble Space Telescope) from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen. Star colors are mixed from the NB channels, Red=H-a, G=O-III and B= 85%O-III + 15%H-a.
NOTE. The size of the full Moon (0,5 degrees) is marked as a gray circle in all of the images.
First image is a three panel mosaic of the "Cygnus Trio"
Second one is two panels from a mosaic.
The mosaic wide field was shot with a Tokina AT-X 300mm f2.8 camera lens.
A closeup image, at the bottom, is shot with a Meade LX200 GPS 12" reduced under 2000mm.
Baader narrowband filter set was used with both images, wide field was shot with a QHY8 and closeup with QHY9 cooled astronomical cameras.
Original images with technical details can be found here:
Friday, May 27, 2011
M1, the "Crab Nebula", the 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.
The full Moon
The Crab Nebula, Messier 1
Ra 05h 34m 32s Dec +22° 00′ 52", In constellation Taurus
Images are in Natural color palette from the emission of ionized elements, R=Hydrogen + Sulfur, G=Oxygen and B=Oxygen + Hydrogen.
NOTE. The size of the full Moon (0,5 degrees) is marked as scale.
Single image of the M1 supernova remnant is used for this scale study. Image was taken with a Meade LX200 GPS 12" telescope at ~f5. QHY9 cooled astronomical camera and the Baader narrowband filter set.
Original image with a technical data:
Thursday, May 26, 2011
Cat's Eye Nebula, study of an 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.
The full Moon
The "Cat's Eye Nebula"
Ra 17h 58m 33s Dec +66° 37′ 59"
NOTE. The size of the full Moon (0,5 degrees) is marked as scale.
Original image with a technical data:
IC 1396, the scale in a sky, zoom in series
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.
The full Moon
IC1396 and the "Elephant's Trunk Nebula"
In constellation Cepheus
Images are in Natural color palette from the emission of ionized elements, R=Hydrogen + Sulfur, G=Oxygen and B=Oxygen + Hydrogen.
NOTE. The size of the full Moon (0,5 degrees) is marked as scale.
Images used in the series above from top to bottom
- A wide field mosaic of IC1396 and Sharpless 129, Sh2-129, at Left. Image is taken with a Canon FD 200mm f2.8 camera lens.
- A IC1396 part of the mosaic, Canon FD 200mm f2.8.
- Target imaged with a Tokina AT-X 300mm f2.8 camera lens.
- A close up of the "Elephant's Trunk Nebula" iumaged with a Meade LX200 GPS 12" telescope, focal lenght ~2000mm.
Links to an original images used in series from to to bottom
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