Breaking News
Loading...
Wednesday, October 27, 2010

Info Post













NGC 2032 in HST-palette, (HST=Hubble Space Telescope)


from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.


There was almost no emission in S-II channel.





NGC 2032, the "Seagull Nebula" (Don't mix to the IC 2177 at Northern hemisphere, also called "Seagull Nebula")  NGC 2032 locates in Large Magellanic cloud and it's in boundary to supershell LMC4. The gas is in various complex forms due the strong solar wind, radiation pressure, from massive stars in the nebula.













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.





Technical details:





16" RCOS ja Apogee U9000 camera. 


 An Australian remote telescope


4x600s for the Luminance


3x1200s H-alpha


2x1200s O-III


2x1200s S-II


Dark, Bias and Flat calibrated.


Raw data is shared by Petri Kehusmaa and J-P Metsavainio





Processing workflow:


Image acquisition, MaxiDL v4.xxx


Stacked and calibrated in CCDStack.


Deconvolution with a CCDSharp, 30 iterations, added at 50% weight.


Levels, curves and color combine in PS CS3.





An experimental starless version.






0 comments:

Post a Comment