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  1. #1
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    Default Magnetic Declination



    Alright so I went out and bought myself a Silva Compass, not an expensive one with all the mirrors or anything, but it is one where you can adjust the dial.
    I pretty much had bought this compass to help me get true north when polar aligning since I can't see north where I view from. So I wanted to use this. Also I like to go hiking so this will be helpful for that too this summer.
    Anyway, I went to this site NOAA's Geophysical Data Center - Geomagnetic Data put in my zip code and clicked on the Declination button, it reads 14W. Now onto my question. Do I turn the dial 14 degrees to the west or to the east to make up for the 14W Declination? I figured it was turn the dial to the west 14 degrees but wanted to make sure.
    ----- Mike -----
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  2. #2
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    Default

    If I remember correctly you would turn the adjustment to the left so it would read 346*.

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  3. #3
    KathyNS's Avatar
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    Default

    Yes, the needle should point 14 degrees west of north. Here is a photo of a Silva compass adjusted to 14 degrees West variation. You would align the mount with the case of the compass, not with the needle. North is to the left in this photo.
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  4. #4
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    Default

    Thank you very much. So I had thought right. Had to make sure though, don't want to be off 28 degrees.
    ----- Mike -----
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  5. #5
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    Yes --- good answers above -- it simply means TRUE NORTH is 14 degrees WEST of where this dumb compass is pointing.
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    Quote Originally Posted by Joe Lalumia View Post
    Yes --- good answers above -- it simply means TRUE NORTH is 14 degrees WEST of where this dumb compass is pointing.
    Eek! Sorry, Joe, it's the opposite. It means that true north is 14 degrees EAST of where the compass is pointing. West variation means that magnetic north is west of true north.

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