|
I've never heard that called the Elephant's Trunk before? That name is usually reserved for IC1396.
Since you're unlikely to be getting any significant benefit from hardware binning on a QHY9 I'd go for unbinned data in all three filters and decide what to do once you've collected a couple of hours in each. You can still software bin OIII and SII if you want.
You won't see the OIII halo around NGC6164 very well if you use Ha for Lum, but even if you don't it is pretty faint...
Cheers,
Rick.
|