M 17 Swan Nebula in RGB color and in mapped color
SII-Ha-OIII-RGB (Ha 8x40m, OIII 8x40m, SII 8x40m, R 8x20m, G 8x20m, B 8x20m) total 24 h.
Robotic data acquisition, Processing: RGB: Bernd Flach-Wilken, NB: Johannes Schedler
Seeing 0.8-1.2 arcsec, 80cm f/7 Astrooptik Keller corrected cassegrain, FLI Proline 16803, Baader Filters, Prompt 7 CTIO Chile,
This chaotic and bright emission nebula in Sagittarius features lots of fine-structured details in RGB and even more in narrowband color (Hubble palette),
RGB Image below:
Narrowband Image below: