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Worth attaching a cooling fan?

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Just ordered my new SW Explorer 150P! Can't wait for it to arrive (and the skies to clear), but was wondering of it is worth me making something so I can attach an old computer cooling fan on the back of it? Would this fan be alright, is it even worth doing on a 6" scope? I also read on another forum that leaving it on just enough to keep it turning can help with the image on planetary viewing, is this true?



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No, when observing is best turned off for stable views. Prior to observing it will acceletate equilibration of the primary to ambient temparature. For a small 6" mirror not really worth the effort as that will cool relatively fast. Enjoy your new scope Tom !

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