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Thread: Advice needed?

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    Default Advice needed?



    Ok, so it's hot...very, very hot outside. 102degrees the past few days.
    If I take my scope outside it fogs up with moisture right away. I don't have a place to store it other than inside with air conditioning so I can't avoid this.
    What can I do? Is this the time to use a hairdryer? ( I read that somewhere)

    Anyway, I am missing some of the best seeing yet. The Milkyway is visable in my backyard, Jupiter is flying higher and I wanted to see if the North American Nebula and Veil Nebulas were able to be detected.


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    Hi lampy ... You could take it outside a few hours before you planned on using it i guess ...
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    Quote Originally Posted by roverich View Post
    Hi lampy ... You could take it outside a few hours before you planned on using it i guess ...
    My recommendation as well. It has been a few degrees hotter than that here but probably less humid. It should be fine if you are able to take it out at 6ish (which is what I do with mine).

    I must say all this heat is adding a whole lot of junk to the air. I got up at 3 AM to see stars galore and no clouds--but it became abundantly evident their was a LOT of moisture scattering the light as only the brightest of DSOs were visible. Nevertheless, Jupiter, Neptune and Uranus all looked wonderful (especially Neptune).
    Last edited by MarkM; 06-26-2009 at 09:36 PM.
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    Hey Lamp, I have the same exact problem. I set my scope out early like recommended above, but with one exception--I wait for the sun to go down first. Seems like direct sunlight might not be good for stuff. I don't know if that's so, but I wait anyway. If it's already dark, say around 9:30 or later, dew usually forms immediately. To prevent it from making spots on your optics I suggest leaving the caps on everything for at least an hour before uncapping. One night, though, my 40mm Plossl still dewed up when I uncapped it. To prevent dew on my 10x50s I put them out early with the scope, but not on the ground--usually hanging on the tripod or in my chair. I noticed last time that their case was wet when I went to pack up. It was laying on the grass, but it was wet only on the UNDERSIDE. Ain't that weird? That just proves that dew doesn't "fall" from the sky like rain. Oh, I also open my eyepiece case, but leave the lens caps on.

    Even after all this, sometimes it's just impossible to view, not to mention how the dew can get worse the longer you're out there. I usually just wear my 10x50s around my neck to keep them a little bit warm. Without a hair dryer or dew zapper I don't know what else can be done for all this. I may get creative tomorrow night when I try an all-nighter. If I think of something I'll let ya all know.

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    Greetings, Lampy! I don't have a "magic bullet" for dew, either. Consider though, a dehumidifier in a slitted dome in yer backyard would be an answer. Pricey? Yep. Effective? Also, yep!

    Oh, yeah. Add M-31 to your viewing list, too.

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    Quote Originally Posted by RussL View Post
    Hey Lamp, I have the same exact problem. I set my scope out early like recommended above, but with one exception--I wait for the sun to go down first.
    Agreed. That is what I do as well. I can see what the sun does to everything else around here and it aint touching my scope!
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