17 hours total, 5 hrs/Halpha, 6hrs/[SII], 6 hrs/[OIII]
[SII] = Red, Halpha = Green, [OIII] = Blue
click image to enlarge, click here for highest resolution
13 hours total, 4.5 hrs/Halpha, 4hrs/[SII], 4 hrs/[OIII]
[SII] = Red, Halpha = Green, [OIII] = Blue
click image to enlarge, click here for highest resolution
11 hours total: 4.5 hrs/halpha, 3.5hrs/[SII], 3hrs/[OIII]
[SII] = Red, Halpha = Green, [OIII] = Blue
click image to enlarge, click here for highest resolution
10hrs total: 4.5hrs Halpha, 2.5hrs/[SII], 3hrs/[OIII]
[SII] = Red, Halpha = Green, [OIII] = Blue
click image to enlarge, click here for highest resolution
To see this area in Halpha only, click
here: 
Stinger 450 Classical Cassegrain (18" f/12.6)
Taken on July 21 - 22, 25 - 26 and August 1, 2006 from my backyard in Castro Valley, California
Lumicon Giant Easy Guider with Focal reducer for final: F= 3366mm, f/7.1
Finger Lakes CM10 MaxCam imaging camera operated at -26C
Robofocus
Finger Lakes CFW1 Filter wheel
SBIG ST7E guide camera
Custom Scientific 3nm FWHM Ha filter (50mm diameter)
Custom Scientific 3nm FWHM [SII] filter (50mm diameter)
Custom Scientific 3nm FWHM [OIII] filter (50mm diameter)
Ten exposures of 30 minutes in Halpha
Twelve exposures of 30 minutes in [SII]
Twelve exposures of 30 minutes in [OIII]
Seventeen hours total exposure time