Monthly Archives: November 2014

The Accuracy of Astro / Celestial Navigation

Posted on November 11, 2014 by Jack Case

 U.S. Navy and Royal Navy navigators are taught that the accuracy of astro navigation is ±1 minute of arc or 1 nautical mile and that where position lines are derived from astronomical observations, the resultant position is not known as a … Continue reading →

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Finding Stars and Constellations – Part III

Posted on November 8, 2014 by Jack Case

This post continues the series Finding Stars and Constellations. Lyra, Cygnus and Aquila – The Summer Triangle. The diagram below shows the constellations Lyra, Cygnus and Aquila. If we follow the reference line ‘the Pointers’ from Ursa Major to Polaris, … Continue reading →

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