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Helix Nebula in Emission-Line
NGC7293
Object
Type Planetary Nebula
Constellation Aquarius
Distance 450 ly
More Info
Image
Date 08 Sep 2018 (Summer)
Place Palomar Mountain, CA
Exposure Data Ha:OIII:OIII 165:90:90 mins @ -25C
Ha 11x15, OIII 6x15 (bin 1x1) as RGB
Notes
Equipment
Optics DSI RC10C Corrected RC Astrograph
Focal Length 1867mm @f/7.3
Mount Astro-Physics 900GTO
Camera FLI ML-6303E
Focuser Built-in Secondary Focuser
Filters FLI CFW2-7, Astrodon Gen 2 LRGB
Software MaxIm DL, CCDStack, Photoshop

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