Ha OIII SII Mix
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SII Ha OIII Mix (like Hubble's Pillars of Creation)
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Taken on July 8, 2003 from my backyard in Castro Valley, Ca.
AP102 Starfire f/8 (F=812mm) imaging scope
SBIG ST10XME imaging camera @-18C
AP80mm guidescope (F=900mm)
SBIG ST7E guide camera @-15C
Optec TCF-S robotic focuser
FLI CFW1 Filter wheel
Custom Scientific Filters
Hydrogen Alpha 656.3nm @3nm FWHM
Oxygen III 500.7nm @3nm FWHM
Sulfur II 673.4nm @3nm FWHM
Three exposures of 30 minutes each were taken through each filter (binned 2x2). Total exposure time is 4.5 hours
Ha was assigned to Red
[OIII] was assigned to Green
[SII] was assigned to Blue