Another project I have been whittling away at for the last month or so is the Helix nebula in bi colour. I chose to use just the two narrow band images based on some advice from Martin Pugh. There is little if any SII data to be had and the noise was very high so in the end I abandoned the SII to data.
I went with the Hubble colour pallette, which mainly focuses on the Ha data over the OIII; although it can be seen within the rings of expelled gas.
If I will try to collect more data if time permits, just to give a better signal to noise ratio.
Click here for larger image.
Critique welcome.