Messier 27 in mapped color

(click image for full resolution)

Portrayed in this image are the different atoms the make up the nebula complex.
The yellow hue displays Sulfur atoms, while the green and blue, Hydrogen Alpha and Oxygen respectively.

This narrowband image is a SII:Ha:OIII (Hubble Palette) mapped as R:G:B respectively.
RCOS 24" F/8 (4876 mm FL) Carbon Truss Ritchey-Chrétien
Apogee Alta U42 - 1x1 bin (image scale .57 arcsec/pix) 
RCOS Professional Series Equatorial  Fork
Total exposure time: 4.3 hours (SII:70min;Ha:120min,OIII:70min)

"© Jason Jennings, www.cosmicphotos.com"

24RC LightBuckets / New Mexico