Conditions: 75 degrees; breezy, excellent seeing
Exposures: 90 min each (6 x 15 min subs) Ha (6nm), OIII, SII
FOV = 126 x 85 arc minutes
Distance to the emission-line nebula estimated to be 7500 ly. Color mapped using Hubble palette: Red (SII), Green (Ha), Blue (OIII)