M20 TRIFIDA NEBULA in the constellation of Sagittarius
REPEAT DATA:
Meade LX 200 in AZ frame and ASI 178 mm cool mono chamber cooled to -23 °
Lucky Imaging technique
Luminance: 470 x 5 "full resolution
Red 230 x 5 "
Green 213 x 5 "
Blue 238 x 5 "(RGB 2x2 bin per channel)
Firecapture acquisition in two different nights
Dark and flat calibration
Sum and calibration Deep Sky Stacker
Photoshop cs5 settings
