Inspired by a few of the recent images including this little gem in the FOV I thought I'd have a go at reprocessing my 2014 data. I think it's quite a bit more subtle than my previous attempt.
NGC6164/6165 is a bipolar emission nebula (not a planetary) in Norma. The outer Oiii shell is very faint and it takes a lot of data to capture it well at long focal length.
Scope: Ceravolo C300 @ f/9 = 2760mm FL, Atlas focuser
Mount: AP900
Camera: U16M
Filters: Astrodon E series Gen 2 LRGB, 3nm HA, OIII, SII
Guiding: Lodestar / MMOAG
Image scale: 0.67 arcsec/pixel
Exposures: 16x1200s + 38x1800s Ha, 37x1200s + 73x1800s OIII, 7x180s R, 7x180s G, 7x180s B
(1460m Ha, 2930m OIII, 21+21+21 RGB = 74.2 hours)
Full res available on Astrobin:
http://www.astrobin.com/254123/
Cheers,
Rick.