This star finder graphically portrays the altitude and azimuth of the fifty-seven numbered stars in the Air and Nautical Almanacs.  Additional celestial bodies may be plotted on the star base.  Special diagrams permit rapid check of hour angle, and also provide means of finding the altitude and azimuth of unplotted bodies or the identification of unplofted bodies from known altitude and azimuth.  The unit consists of a dual star base, nine altitude azimuth templates centered at 10' intervals of latitude, meridian angle diagram and instruction sheet all enclosed in a soft plastic sleeve.  Wt. 1 lb. Shipping Weight 2 lbs.
Mfg Part Number 150
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The celestial slide rule will significantly reduce the effod and time for determining values used in celestia navigation.  This quick and easy device is also a great complement to your navigation computer.  The slide rule has GHL (Greenwich Hour Angle), LHA (Hour Angle), t (Meridian Angle), SHA (Sidereal Hour Angle) and observers meridian.  When two or more of the values are known, the rest can be determined by a single alignment Wt. 2 oz. Shipping Weight 1 lb.
Mfg Part Number 7543
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