M17 (Swan Nebula)
Distance from Earth: 5000 light years
Located in : Sagittarius
Telescope: RCOS 12.5"
Camera : STL11000 (off axis guided)
Mount : AP1200
Image date: May 2009
-- Filters used and total time--
Luminous
Red 60 minutes
Green 60 minutes
Blue 60 minutes
Ha
OIII
SII