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  1. #1
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    Default -C outside temperature..Is it safe?



    I just received my new telescope...{Meade 6" ETX-LS ACF}..Is it safe to take it outside when the Temp is below the freezing mark??..It has batteries in it until I receive my power adapter in the mail....Thanks....m_m....

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    Default

    It will be fine. If we all didn't go out when the temperature was below freezing, we'd never get any observing done. Try to avoid breathing on your eyepieces. You might want to have a hair dryer on hand to defrost things.

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  4. #3
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    Default

    Fine for the telescope, rough on the operator. I guess if I lived up north where you guys do, I would be out in cold weather, BUT I live in the deep south, and we have tons of winter evenings when it stays well above freezing. If it's below freezing, I'm probably inside by the fireplace.

    So, don't worry about the telescope, just make sure you are dressed appropriately for cold weather.

    Clear skies to ya
    Jim
    Celestron C9.25. Atlas EQG mount. Canon 500D unmodded, Celestron ST80 guide scope, SSAG, Meade 6.3 FR, Thousand Oaks dew control with Dewnot straps. Zhumell 8/24mm Zoom, 2"Gso Superview 42mm, Meade 2"QX wide angle 30MM, Meade 1.25 EP and filter set. Tasco 10x50 Zhumell 20x80 bino and a few other odds and ends.
    Now where did I put that clear sky button!

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  6. #4
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    Don't be surprised if the batteries go to sleep.

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    Thanks Guys and Gals..I know what I'll be doing this evening....m_m...
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  9. #6
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    Default

    Be careful with the "power adapter." Line voltage can spike in the winter especially. That can fry the electronics.

    Get a small gel cell (motor scooter type, 10 AH is good) and make a cable with a male and female cigarette lighter to connect to and from the battery. Use a 10A fuse to protect the battery against a short. Put the female on the battery end. Then put a male on the scope end and one on the charger. Parts are available at auto supply stores and Radio Shack.

    It holds much better than the flashlight batteries at cold temps, doesn't spike and is easily portable. I limit the charge to 13 V to avoid over voltage on the electronics.

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  11. #7
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    If you go out when it's really cold,don,t forget to blink,pretty often. Keeps you r eyelashes from freezing to the ep! lol
    Bill

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