Compass direction using a watch: Difference between revisions

Revision as of 17:59, 13 March 2008

Revision as of 18:03, 13 March 2008

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[[Image:Direction_Watch.jpg|thumb|220px|left|Specialized 24-hour Hour Watchwatch with Compasscompass Cardcard Dialdial]]

== Direction-finding Finding Watchwatch ==

The photophotograph to the left shows a specialized 24 -hour watch optimized for finding directions using the sun. With the watch set to indicate local time, the hour hand is pointed directly at the sun. North is indicated by the local noon position (In the Northern Hemisphere).

It is also possible to approximate one's bearings using an analogue watch. The method is as follows:

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During [[daylight saving time]], the same method for 11:00 holds. There are also minor inaccuracies due to the difference between [[local time]] and zone time and due to the [[equation of time]].

==See also==

* See [[Astrocompass]] for related information

* [[Astrocompass]]

{{Astronomy-stub}}