IC 5146 --- The Cocoon Nebula
From the author of Sizing Up The Universe
L=Ha,
R=Ha, G=OIII, B=OIII
23:12 EDT, July 9, 2009
Starlight Express SXV-H9 on 10" RC
Ha = 130 mins,
OIII = 20 mins (in 10 min guided increments),
No image enhancement. Seeing: FWHM = 1.3 arcseconds. Full Moon!