Quote:
Originally Posted by RickS
Hi Suavi,
If you combine the Ha, Oiii and Sii using ImageIntegration (noise-weighted, no rejection) you should get a SNR improvement and also a contribution to the Lum from the other filters, though it may be small if those masters are very noisy compared to the Ha. Worth a try if you haven't attempted it before.
Cheers,
Rick.
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Great advice, thank you Rick. I will certainly try it.
Signal in OIII is around 300 ADUs above the floor in the brightest areas, while SII is only about 250 ADUs in the same regions, while Ha is nearly 2000ADUs (Gain =0.16). I would also like to try making RGBish stars from narrowband data I have. Will report soon, I hope :-)