SwampStar Posted March 1, 2012 Share Posted March 1, 2012 Evening all. At last, a chance to get out again on a beautiful clear evening. Headed out at about 9.30 for a cracking view of Jupiter and about half an hour staring at the moon. Stunning!Anyways, I thought I'd give Saturn a crack tonight, but as I went out round midnightish the whole scope is covered in dew and I can't see a thing!Is this a common problem and can anything be done to stop it?Cheers in advance... Link to comment Share on other sites More sharing options...
LukeSkywatcher Posted March 1, 2012 Share Posted March 1, 2012 Buy yourself a camping mat and construct a dew shield from it. Link to comment Share on other sites More sharing options...
umadog Posted March 1, 2012 Share Posted March 1, 2012 https://www.google.com/search?q=telescope%20dew%20solution Link to comment Share on other sites More sharing options...
SwampStar Posted March 1, 2012 Author Share Posted March 1, 2012 Thanks. Link to comment Share on other sites More sharing options...
M4lcs67 Posted March 1, 2012 Share Posted March 1, 2012 I must admit I found it rather dewey last night. I did have my dew sheild on and my spare eyepieces in my pockets. It was nice and clear but no sign of frost which is what I would have expected. Even my lawn where I set up my scope was wet. Normally I have this sensation of the grass crunching underfoot as an indication that it is getting frosty. Oh well. At least I saw Mars and Saturn last night. The last time I saw Saturn was last year and for the very first time. A friend lent me his 40 year od reflector and while scanning the sky from my back garden a very fuzzy Saturn hoved into view. What a brilliant moment that was. Very memorable. Link to comment Share on other sites More sharing options...
hemihaggis Posted March 1, 2012 Share Posted March 1, 2012 I must admit I found it rather dewey last night. I did have my dew sheild on and my spare eyepieces in my pockets. It was nice and clear but no sign of frost which is what I would have expected. Even my lawn where I set up my scope was wet. Normally I have this sensation of the grass crunching underfoot as an indication that it is getting frosty. Oh well. At least I saw Mars and Saturn last night. The last time I saw Saturn was last year and for the very first time. A friend lent me his 40 year od reflector and while scanning the sky from my back garden a very fuzzy Saturn hoved into view. What a brilliant moment that was. Very memorable.do you set up on the grass ... ???? Link to comment Share on other sites More sharing options...
SwampStar Posted March 1, 2012 Author Share Posted March 1, 2012 do you set up on the grass ... ???? Me?No...Or him^^^?Don't know... Link to comment Share on other sites More sharing options...
AstroMadBloke Posted March 1, 2012 Share Posted March 1, 2012 Luke you took the words right out of my mouth, I made a due shield from a camping mat for my Celestron refractor and it work just fine. Mind you for my 10" Mead I have a 12v heater strap which keeps the corrector plate clear of due for hours even in our Scottish winters. Link to comment Share on other sites More sharing options...
Uranium235 Posted March 1, 2012 Share Posted March 1, 2012 Alternatively, if you've put down any laminate flooring over the past few years you may still have some of the foam underlay laying about, which is what I use. Link to comment Share on other sites More sharing options...
M4lcs67 Posted March 1, 2012 Share Posted March 1, 2012 I did set up on the grass. I do have a patio, but that is right next to the house so in order to get a better view of more of the sky I need to set it up at the bottom of the garden and that means it is on the grass. Link to comment Share on other sites More sharing options...
scuffer Posted March 1, 2012 Share Posted March 1, 2012 not had this problem yet as just got my scope , its a 200p dob , from the google images I've seen do I just cut up a camping mat and wrap it around the top end of of my scope ? how does that work for the rest of the scope ? off topic saw Saturn at 5.30 this morning for the first time ...awesome Link to comment Share on other sites More sharing options...
Carbon Brush Posted March 1, 2012 Share Posted March 1, 2012 Prevention, with a dew shield is always best.But for other scope & finder parts a good investment is a 12V hair dryer. Electrically safe for outdoor viewing. A quick waft over will remove dew after it builds. Link to comment Share on other sites More sharing options...
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