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The Elephant Trunk nebula - IC 1396 - alternative palette, Simon
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The Elephant Trunk nebula - IC 1396 - alternative palette

Getting plate-solving status, please wait...
The Elephant Trunk nebula - IC 1396 - alternative palette, Simon
Powered byPixInsight

The Elephant Trunk nebula - IC 1396 - alternative palette

Equipment

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Description

During the series of sunny weather and clear nights of late, which have now ended, I have been taking a lot of Ha-OIII images, where possible. I have found it difficult to gather enough OIII during this time, and so, presumably, that is why I have not yet been able to get those deep blue areas in my images - or is that something that only comes when one is collecting SII as well? I am limited in my understanding here. I tried different formulae to get the best out of my data, because the OIII was so noisy, and so I have posted two different versions. One here and one on the next page. 


I sort of came up with my own formula for the image on this page - out of interest it is...

R/K: HA
G: (0.4*HA)+(0.6*OIII)
B: (0.4*HA)+(0.6*OIII)


I am pleased with the detail and colour I have got here, even though it is not a standard palette as such. On the next page the image is more standard using the familiar HOO formula.



R/K: HA
G: OIII)
B: OIII


This is my best image yet of the 'elephant', and the one on the next page too, and it leaves my DSLR images of this way behind. I am enjoying the new ZWO 294MM. I took 70 Has and 75 OIIIs, each at 4 minutes long - an integration time of 9 hours and 40 minutes.

Take care everyone, and thanks.
Simon

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The Elephant Trunk nebula - IC 1396 - alternative palette, Simon