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Saturday, June 11, 2011

Tulip Nebula, Sh2-101, apparent scale in the sky





I have shot many targets with several focal lengths. 
Due that, I will publish some older images 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.


Sharpless 101, the "Tulip Nebula"
In constellation Cygnus


This is a second version, this time in "natural" colors from the emission lines.
First version in HST-palette can be seen here:

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. This composition is very close to a visual spectrum.

Images used in the series above

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:



www.tips-fb.com Posted by J-P Metsavainio at 11:33 AM 0 comments
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Thursday, June 9, 2011

California Nebula, NGC 1499, apparent scale in a sky





I have shot many targets with several focal lengths. 
Due that, I will publish some older images 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.


California Nebula, NGC 1499, a zoom in series
In constellation Perseus

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.

This is a second version, the first version in natural colors can be seen here:

Images from top to bottom

1. Image from 2008, Canon FD 200mm f2.8 camera lens, QHY8 astronomical camera
2. Tokina AT-X 300mm f2.8 camera lens, QHY9 astro camera and a Baader NB-filter set
3. A closeup with the Meade LX200 GPS 12" ~2000mm, QHY9 and a Baader NB-filter set

Original images and technical details




www.tips-fb.com Posted by J-P Metsavainio at 11:13 AM 0 comments
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Zoom in series to Sharpless 234, 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.


Sh2-234
An emission Nebula in constellation Auriga

Image is in HST-palette from the emission of ionized elements, R=Sulfur,
G=Hydrogen and B=Oxygen.


Images used in the series above from top to bottom

  1. A wide field shot with a Canon FD 200mm f2.8 camera lens. Technical details: http://astroanarchy.blogspot.com/2008/03/ic-405-410-with-color.html
  2. An image with a Tokina AT-X 300mm f2.8. Technical details: http://astroanarchy.blogspot.com/2010/12/ic405-410-reprocessed.html
    3. Zoomed in version of previous image
  3. Image is done with a Meade LX200 GPS 12" reduced little under 2000mm. Technical details: http://astroanarchy.blogspot.com/2010/12/sh2-234-ic417-project-finalized.html

Two other zoom in series from the same area, IC405 & IC410





www.tips-fb.com Posted by J-P Metsavainio at 9:38 AM 0 comments
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Wednesday, June 8, 2011

A reprocessed panorama of "Heart & Soul" Nebuale





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.


From IC 1848, the "Soul Nebula" to the IC 1805, the "Heart Nebula"
Two panel mosaic panorama 
In constellation Cassiopeia



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.





Image is in HST-palette from the emission of ionized elements, R=Sulfur,
G=Hydrogen and B=Oxygen.


Original mosaic with a technical details:
Image is taken with a Tokina AT-X 300mm f2.8 camera lens and a QHY8, a cooled astronomical camera. Baader narrowband filter set, total exposure time was ~9h







www.tips-fb.com Posted by J-P Metsavainio at 10:44 AM 0 comments
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