DIY History | Transcribe | Scholarship at Iowa | Eccentricity of the Sextant by Frederic Furbish, 1893 | Eccentricity of the Sextant by Frederic Furbish, 1893, Page 97

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Eccentricity of the Sextant by Frederic Furbish, 1893

Eccentricity of the Sextant by Frederic Furbish, 1893, Page 97

The next step is to find the values of h[subscript]0[/subscript] = h + Am - B[n?] . Turning to the second sheet we find 37°42'39" as the first number in the observed altitude or (h) column. On the third sheet we find for the first Am (compounding to the first observed altitude) 129.61". The first Bn is [0.03"?]. Substituting in the formula we get h[subscript]0[/subscript] = 37°42'39" + 129.61" - [0.03"?] = 37°44'48.58".
     In a similar manner we find all of the other h[subscript]0[/subscript]'s from 1-13 inclusive rejecting of course those marked R.
     Find the mean value of h[subscript]0[/subscript] for the entire set of observations (No. 51). Add all of the h[subscript]0[/subscript]s and divide by the whole number of the observations made minus those rejected. In this case the number is 10 and the mean value 37°44'41.53".
     As a check on this we get the mean value of all the observed altitudes, add

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The next step is to find the values of h[subscript]0[/subscript] = h + Am - B[n?] . Turning to the second sheet we find 37°42'39" as the first number in the observed altitude or (h) column. On the third sheet we find for the first Am (compounding to the first observed altitude) 129.61". The first Bn is [0.03"?]. Substituting in the formula we get h[subscript]0[/subscript] = 37°42'39" + 129.61" - [0.03"?] = 37°44'48.58". In a similar manner we find all of the other h[subscript]0[/subscript]'s from 1-13 inclusive rejecting of course those marked R. Find the mean value of h[subscript]0[/subscript] for the entire set of observations (No. 51). Add all of the h[subscript]0[/subscript]s and divide by the whole number of the observations made minus those rejected. In this case the number is 10 and the mean value 37°44'41.53". As a check on this we get the mean value of all the observed altitudes, add