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Monday, May 23, 2011

California Nebula, NGC 1499, scale in a sky, zoom in series



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.

The full Moon




California Nebula, NGC 1499
In constellation Perseus



Images are in "natural" colors, composed from the narrowband channels.
NOTE. The size of the full Moon (0,5 degrees) is marked as a gray circle in all of the images.


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





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