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Friday, January 13, 2012

Cygnus zoom in series




Weather, up here 65N, doesn't give any support so I made an other zoom in series.
This time I'm zooming from 23x14 to 0,5x0,7 degrees of sky at the are of NGC 7000 in Cygnus.
Older series can be seen in my portfolio: http://astroanarchy.zenfolio.com/p162076373

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.


Cygnus zoom in series, a study of the apparent scale in the sky.
Note. The apparent size of the full Moon is marked as a gray circle at lover Right corner.

Images are in mapped colors from emission of ionized elements, R=Sulfur, G=Hydrogen & B=Oxygen.

Location in the Sky, star map overlay



Images used in this series:

A giant, 18-panels, mosaic of the Cygnus constellation with 200mm canon EF at f1.8:
http://astroanarchy.blogspot.com/2011/12/cygnus-mosaic-18-panels-and-22-x-14.html

North America and Pelican Nebulae with 300mm Tokina AT-X at f2.8:
http://astroanarchy.blogspot.com/2011/11/ngc-7000-north-america-pelican-nebulae.html

Closeup of North America Nebula with Meade LX 200 GPS, reduced to f5 ~2000mm:
 http://astroanarchy.blogspot.com/2010/09/ngc-7000-closeup-hst-palette-preview.html






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