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Field Procedure - CONTINUED - 14070_355
OBSERVATIONS ON POLARIS OR OTHER STARS

Engineering Aid 1 - Advanced Structural engineering guide book
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Solving for Z, Note that LHA is between 180° and 360° and that Z is positive; therefore, the normalized correction equals 0. Solving for h, As shown in figure 15-14, the left edge of the sun (indicated by the symbols in the “point” column) was pointed both direct and reverse. That being the case, the correction dH is added to the average horizontal angle as follows: Solving for the azimuth of line  AB (Set 1), you obtain the following: Now, if you use the same calculation procedures to obtain the azimuth of line AB for Sets 2 and 3, you find the following: If  you  desire  a  bearing,  you  know  that  an  azimuth  of  91°24´03´´  equates  to  a  bearing  of  S88°35´57´´E. 15-22







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