Everything has dewed over :-(

[blinky]

Never had that before - everything has dewed over, Primary of my Newt, even with a dew shield attached,  the filters in the filter wheel, the Coma Corrector and even the front cover slip of the ASI1600! All covered in dew.  Was calling it a night as it clouded over anyway, but Ive never had a Newt primary dew over (actually been out twice with the hairdryer tonight!), never mind everything else.....  Was cold though, around minus 3 and everywhere is covered in frost/snow. 

[saac]

9 minutes ago, blinky said:

Never had that before - everything has dewed over, Primary of my Newt, even with a dew shield attached,  the filters in the filter wheel, the Coma Corrector and even the front cover slip of the ASI1600! All covered in dew.  Was calling it a night as it clouded over anyway, but Ive never had a Newt primary dew over (actually been out twice with the hairdryer tonight!), never mind everything else.....  Was cold though, around minus 3 and everywhere is covered in frost/snow. 

Same here in Fife  , gave up after 2230, started off so well. Inside of the obsy looks like a winter wonderland  

Jim 

Edited January 7, 2021 by saac

[blinky]

just about to order the dew heater for the front of the ASI1600, hopefully enough heat will also transfer to the filter wheel assembly as well.  Actually wondering about just leaving it powered on all the time (in winter)....

[jonathan]

On 07/01/2021 at 00:07, blinky said:

just about to order the dew heater for the front of the ASI1600, hopefully enough heat will also transfer to the filter wheel assembly as well.  Actually wondering about just leaving it powered on all the time (in winter)....

You may find that it'll give some unwanted thermal currents if you have to turn it up to combat the freezing cold.  My advice: become an expert on dew forecasting (takes experience!) and if it looks really bad, just stay indoors or use something less susceptible to dew.  I find there's nothing more frustrating than being totally dewed out after having put in a load of effort to setup etc and not really get to see anything.