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Encyclopedia :
P :
PO :
POS :
Position circle |
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Position circleA position circle is a circle that can be measured both from a chart and from the surface of the earth for the purpose of position fixing. The circles can be measured by sextant. Two position circles can be used to give a position fix. |
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This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License. |
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| © 2008 Chamas Enterprises Inc. |
