This is five hours ie 19x16 minutes in 3nm NII. It is actually the best of 24 frames. Thin cloud affected the five that were rejected.
The data was collected with the SMC high or around the zenith.
Large image x1.5 native pixel size. 14MB
http://d1355990.i49.quadrahosting.co...SMC_NII_5H.jpg
I am in uncharted territory here. What is signal? What is noise?
Here is the fit stack of 19 upsized frames 24 MB
http://d1355990.i49.quadrahosting.co...SMC_NII_5H.zip
I would be very interested what others can do with this data.
Hopefully I can get OIII and SII to make a NB in Hubble palette.
Bert