Celestial navigation
Which smartphone for your nav software?

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Astral nav another tutorial

By Russ, on November 12th, 2005

This interactive site allows you to obtain all the astronomical information necessary to plot navigational lines of position from observations of the altitudes of celestial bodies. A table of data is provided giving both almanac data and altitude corrections for each celestial body that is above the horizon at the place and time that you specify all care of the US Navy ..