M27 Dumbbell Nebula in [NII], Halpha and [OIII]

[NII] = Red, Halpha = Green, [OIII] = Blue

Click image to enlarge, click here for highest resolution

Taken on August 12, 14 and 17, 2006 from my backyard in Castro Valley, C

To see this image in Ha and [OIII] only click here           

                                                                        Stinger 450 Classical Cassegrain (18" f/12.6)  

Lumicon Giant Easy Guider with Focal reducer for final: F= 3366mm, f/7.1

Finger Lakes CM10 MaxCam imaging camera operated at -20C

Robofocus

Finger Lakes CFW1 Filter wheel

SBIG ST7E guide camera

Custom Scientific 3nm FWHM Ha filter (50mm diameter)

Custom Scientific 3nm FWHM [OIII] filter (50mm diameter)

Custom Scientific 3nm FWHM [NII] filter (50mm diameter)

Six exposures of 30 minutes through Halpha filter

Seven exposures of 30 minutes through [NII] filter

four exposures of 30 minutes through [OIII] filter

Eight and a  half hours total exposure time

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