EtaCarina Ha OIII BiColour

Hmmm....not sure what I think of this one, so your guidance would be appreciated. It is a bicolour image that is constructed using the H-apha and OIII data I collected in Chile in 2010 (same equipment as described for H-alpha black&white image). The H-alpha data was mapped to red, OIII data I acquired was mapped to blue, and the third channel was a synthetic green channel created with the Halpha & OIII data using Noel Carboni's Actions.

I'm not sure if it matches what others have gotten with this bicolour technique. A lot of judgement calls were made (ie. I believe that the H-alpha emission line would contribute the majority of light from the nebula) but I could be off the mark..

Let me know what you think! :-)