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Swan Nebula in Emission-Line
M17
Object
Type Diffuse Nebula
Constellation Sagittarius
Distance 5,000 ly
More Info
Image
Date 20 Jun 2020 (Spring)
Place Palomar Mountain, CA
Exposure Data SII:Ha:OIII 195:210:195 mins @ -25C
SII 13x15, Ha 14x15, OIII 13x15 (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 3nm SII, Ha, OIII
Software Maxim DL, CCDStack, Photoshop

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