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astrocompass
as·tro·com·pass [ ástrō kùmpəss ] (plural as·tro·com·pass·es)


noun 
Definition:
 
navigational instrument: a nonmagnetic navigational instrument used to determine the position of true north relative to an astronomical object
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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