Click image for medium resolution, click here for larger, for highest resolution, click here
Halpha only (4 x 5 minutes)
Click image for medium resolution, click here for larger, for highest resolution, click here
Taken on August 19 - 21, 2004 from my backyard in Castro Valley, California
Takahashi FSQ106 f/5 (F=530mm) imaging scope
Finger Lakes IMG6303E imaging camera at -37C
AP80/900MM guide scope
SBIG ST7E guide camera at -15C
Finger Lakes CFW1 filter wheel
AP900GTO mount
Finger Lakes DF2 Focuser
Custom Scientific 50mm Narrowband Emission Line filters (AR Coated)
[Sulfur II] 673.4nm 3nm FWHM
Hydrogen alpha 656.3nm 3nm FWHM
[Oxygen III] 500.7nm 3nm FWHM
7 exposures of 5 minutes for Ha, 8 exposures of 5 minutes for [SII], 8 exposures of 5 minutes for [OIII]
one hour and fifty five minutes total exposure time