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Finding Observed Altitude

At meridian passage, upper passage, the observer's latitude was found to be 43° 34.7' N, Dec. is 1° 46.3' N. Find observed altitude.

Given:
            Lat = 43° 34.7' N
            Dec = 1° 46.3' N

What is asked?

           Observed altitude (Ho)

Solution:

           Lat = 43° 34.7' N
           Dec = 1° 46.3' N         (Always reverse sign)

            Lat = 43° 34.7' N
           Dec = 1° 46.3'  S      (Subtract because it has different name)
             ZD = 41° 48.4' N
                  - 90°                 (Always minus 90° to get observed altitude)
           Ho = 48° 11.6' N

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