IC 434 (Horse Head Nebula)
Distance from Earth: About 1500 light years
Located in Orion
Telescope: RCOS 12.5"
Camera : STL11000 (off axis guided)
Mount : AP1200
Image date: Feb 2009
-- Filters used and total time--
Luminous
Red 40 minutes
Green 40 minutes
Blue 40 minutes
Ha
OIII
SII