Click image to enlarge, click here for highest resolution
[SII] =Red, Ha = Green, [OIII] = Blue ("Hubble Palette")
Inverted palette (click to enlarge)
Desaturated (click to enlarge). Click here for highest resolution
Taken on June 19, 2004 from Fremont Peak State Park near San Juan Bautista, California
Takahashi FCT-76 imaging scope with Takahashi Focal reducer, f/4.5, F=376mm
SBIG ST10XME imaging camera at -26C
Astro-Physics 80/900mm guidescope with adjustable rings
SBIG ST7E guide camera at -15C
Astro-Physics AP900GTO mount
FLI DF2 Digital Focuser
FLI CFW1 Color Filter Wheel
Custom Scientific AR-Coated narrowband emission line filters (50mm unmounted)
[SII] 673.4nm CWL, 3nm FWHM
Ha 656.4nm CWL, 3nm FWHM
[OIII] 500.7nm CWL, 3nm FWHM
Exposure details:
five exposures of 10 minutes through Ha, [OIII] and [SII] filters
Total exposure time = 2 hours 30 minutes