NGC7635 Bubble Nebula in Halpha and [OIII] from Stinger 450 Classical Cassegrain

Click image to enlarge, click here for highest resolution


Red= halpha

Green = [OIII]

Blue = [OIII] + 0.2*Halpha ( to simulate Hbeta emission)

Taken on August 2, 8 and 10, 2006 from my backyard in Castro Valley, Ca

Stinger 450 Classical Cassegrain (18" f/12.6) 

To see in Halpha only click here:                                                        

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

Finger Lakes CM10 MaxCam imaging camera operated at -20C


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)

Fifteen exposures of 30 minutes through Halpha filter

Seven exposures of 30 minutes through [OIII] filter

Eleven hours total exposure time

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