DIY History | Transcribe | Scholarship at Iowa | Theory of the astronomical transit instrument applied to the portable transit instrument Wuerdemann no.26: a compilation from various authorities, with original observations by Harry Edward Burton, 1903 | Theory of the astronomical transit instrument applied to the portable transit instrument Wuerdemann no. 26: a compilation from various authorities, with original observations by Harry Edward Burton, 1903, Page 62

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Theory of the astronomical transit instrument applied to the portable transit instrument Wuerdemann no.26: a compilation from various authorities, with original observations by Harry Edward Burton, 1903

Theory of the astronomical transit instrument applied to the portable transit instrument Wuerdemann no. 26: a compilation from various authorities, with original observations by Harry Edward Burton, 1903, Page 62

effects of error of collimation and inequality of pivots upon the apparent time of transit may be reversed in sign." Three or four readings of the stride level (direct and reverse as described under "Method of Using the Level") should be taken during each half set.
     Stars observed at lower culmination are marked S.P. (sub polr).
     A good program to follow is,
          Take the level readings.
          Observe half the stars.
          Take the level readings.
          Reverse the instrument.
          Take the level readings.
          Observe half the stars.
          Take the level readings.
     Extra level readings should be taken between observations, when there is time enough.
     When the axis is reversed the sign of c should be reversed in Mayer's formula.
     Folliowing is an observing list and a set of observations taken by the "eye and ear" method, with a solution of the equations by the Method of Least Squares.

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effects of error of collimation and inequality of pivots upon the apparent time of transit may be reversed in sign." Three or four readings of the stride level (direct and reverse as described under "Method of Using the Level") should be taken during each half set. Stars observed at lower culmination are marked S.P. (sub polr). A good program to follow is, Take the level readings. Observe half the stars. Take the level readings. Reverse the instrument. Take the level readings. Observe half the stars. Take the level readings. Extra level readings should be taken between observations, when there is time enough. When the axis is reversed the sign of c should be reversed in Mayer's formula. Folliowing is an observing list and a set of observations taken by the "eye and ear" method, with a solution of the equations by the Method of Least Squares.