Ha = Red, [OIII] = Green, [OIII] = Blue
Taken on August 14, 2004 at the Fremont Peak Observatory
near San Juan Bautista, California.
AP155EDF f/7 (F=1085mm) imaging scope
Finger Lakes IMG6303E imaging camera at -37C
AP80/900MM guide scope
SBIG ST7E guide camera at -15C
Finger Lakes CFW1 filter wheel
OPTEC TCF-S Focuser
Custom Scientific 50mm Narrowband Emission Line filters (AR Coated)
Hydrogen alpha 656.3nm 3nm FWHM
[Oxygen III] 500.7nm 3nm FWHM
Finger Lakes Blue filter
4 exposures of 20 minutes for Ha and [OIII], 7 exposures of five minutes through Blue filter
Three hours and 15 minutes total exposure time.