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Monday, January 17, 2011

Cone and Rosette Nebulae reprocessed





Since my processing technique gets better and weather doesn't give any support, I have reprocessed some older images. There is now star colors added and other processing is tweaked too.


Cone & Rosette Nebulae
A two panel mosaic




Image is 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.

Both nebulae are located in constellation Orion.
Images are taken with a Canon EF 200mm f1.8 lens, at full aperture, with Baader NB filter set and the QHY9 camera.


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. 
Star colors are mixed from the NB channels, Red=H-a, G=O-III and B= 85%O-III + 15%H-a.

Original version from Spring 2009, with technical details:


Cone Nebula part







Rosette Nebula part










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