Worth attaching a cooling fan?

[tomw28]

Hi,

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?

Thanks!

Tom

[jonstarrysky]

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 !

[tomw28]

Thanks Jon, didn't think it would be but thought I'd ask the experts on here! Who knows, I may get bored and want to make something in the future but good to know it isn't needed.

Tom