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Trifid Nebula
M20
Object
Type Diffuse Nebula
Constellation Sagittarius
Distance 5,200 ly
More Info
Image
Date 1-Jul-2011 (Summer)
Place Palomar Mountain, CA
Exposure Data HaLRGB 60:30:15:15:15 mins @ -10C
Ha 6x10, Lum 6x5 (bin 1x1), R 3x5, G 3x5, B 3x5 (bin 2x2)
Notes
Equipment
Optics Celestron C11 Carbon Fiber SCT w/XLT
Focal Length 1700mm @f/6
Mount Astro-Physics 900GTO
Camera SBIG ST-10XME
Focuser Robo-Focus
Filters CFW8A, Astrodon LRGB, 3nm Ha
Software Maxim DL, CCDStack, Photoshop

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