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NGC6357 Nebula in Emission-Line
NGC6357
Object
Type Emission Nebula
Constellation Scorpius
Distance 3,300 ly
More Info
Image
Date 22-May-2009 (Spring)
Place Mount Laguna, CA
Exposure Data SII:Ha:OIII 60:120:60 mins @ -20C
SII 4x15, Ha 8x15, OIII 4x15 (bin 1x1) as RGB
Notes
Equipment
Optics Takahashi FSQ-106N Refractor
Focal Length 530mm @f/5
Mount Astro-Physics 900GTO
Camera SBIG ST-2000XM
Focuser Robo-Focus
Filters CFW10A, Astrodon 6nm SII, Ha, OIII
Software CCD Commander, Maxim DL, CCDStack, Photoshop

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