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Friday, June 4, 2010

M8, the "Lagoon nebula"

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

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.

Less compressed images here: 

M8, the "Lagoon nebula" in Constellation Sagittarius.
Image field is about 30' x 30', half a degrees.
A new project, from Northern galactic remote telescope in Australia.
The Lagoon nebula, M8, in ionized light from the Three elements, H-alpha, O-III and S-II.

100% crop from the image of M8

The telescope and technical information:

16" RCOS ja Apogee U9000 camera. 
LRGB combo.
H-alpha 4x1200s, Dark and Flat calibrated.
O-III x1200s, Dark calibrated 
O-III x1200s, Dark calibrated
Raw data is shared with Petri Kehusmaa and J-P Metsavainio

Processing workflow:
Image acquisition, MaxiDL
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations
Levels, curves and color combine in PS CS3.

Edit 05.06.2010

Here is a Starless version of M8, I like to do some tricks with the images and the results are experimental in nature. Actual nebula can be seen better here.

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