NGC 7640
Distance from Earth: About 19 million light years
Located in: Andromeda
Telescope: 12.5" RCOS
Camera : STL11000, off axis guiding
Mount : AP1200
Image date: Oct 2012
-- Filters used and total time--
Luminous 440 minutes
Red 260 minutes
Green 260 minutes
Blue 240 minutes
Ha
OIII
SII