M94 Spiral Galaxy from 18" Cassegrain

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shot on February 5, 2005  from my backyard in Castro Valley, Ca. 

FIRST LIGHT FOR NEW BAFFLE CONFIGURATION 

(scope needed collimation and seeing was soft unfortunately)

Compact Collapsible Cassegrain 18" @f/12.60 (F=5760mm), image scale = 0.24 arc-sec/pixel

ST10XME camera @-30C

AO7 @ 3.5Hz

FLI CFW1 Filter wheel

Optec  IR-Blocked Lum filter

6 exposures of 10 minutes (binned 1x1)

one hour total exposure time

 

   

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click image to enlarge

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