80cm f/7 Astrooptik Keller corrected cassegrain, FLI Proline 16803, Baader Filters, Prompt 7 CTIO Chile, robotic data acquisition,

Image data:
SII-Ha-OIII-RGB (Ha 7x40m, OIII 7x40m, SII 7x40m, R 12x10m, G 12x10m, B12x10m) total 20 h exposure, seeing 0.8-1.2 arcsec.

Processing: Johannes Schedler

This large and bright emission nebula features lots of fine-structured details in narrowband color (Hubble palette).

Here is the full frame image in 20/80% size:

 Here is a crop of the Center of this nebula including the hourglass in 50/100% size:

 Here is a crop on the bottom part of this image showing the eroding shock fronts in 38/80% size: