M27 in [SII], Halpha and [OIII] from Stinger 450, FLI IMG1024S Dream Machine and Custom Scientific Filters

click image to enlarge, click here for highest resolution

[SII] = Red, Ha = Green, [OIII] = Blue

Taken on July 5, 8,  9, 20, 21, 27, 30, 31, August 1 and 3,  2007 from my backyard in Castro Valley, Ca.

 

Stinger 450 Classical Cassegrain (18" f/12.6)  

 

Finger Lakes IMG1024S Dream Machine  imaging camera operated at -30C

Lumicon Giant Easy Guider with Focal Reducer

SBIG ST7E guide camera

Robofocus

Finger Lakes CFW1 Filter wheel

Custom Scientific 4.5nm FWHM Ha filter (50mm diameter)

21 exposures of 20 minutes through Halpha filter

36 exposures of 20 minutes through [SII] filter

30 exposures of 20 minutes through [OIII] filter

29 hours total exposure time

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