M97 Owl Nebula in Halpha and [OIII] from Stinger 450 Classical Cassegrain, FLI CM10 and Baader Planetarium Emission Line Filters

Click image to enlarge, click here for highest resolution

taken on January 18 and 19, 2008 from my backyard in Castro Valley, Ca

Red = [Halpha 

Green = [OIII]

Blue = [OIII] + Hbeta, Hbeta approximated as 0.2* Halpha

Stinger 450 Classical Cassegrain (18" f/12.6)  

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

(binned 2x2, image scale = 0.84 arc-sec/pixel at capture)

Finger Lakes CM10 MaxCam imaging camera operated at -25C


Finger Lakes CFW1 Filter wheel

SBIG ST7E guide camera

Baader Planetarium Ha filter (50.8 mm diameter)

Baader Planetarium [OIII] filter (50.8mm diameter)

12 exposures of 10 minutes through Halpha filter

18 exposures of 10 minutes through [OIII]

5 hours total exposure time

Hit Counter