ASTRONOMICAL CO-ORDINATES THE PRIMARY STATIONS AT CHEYENNE, WYOMING TERRITORY, AND O.S. ARMY. OF MADE DURING GOVERNMENT The Years 1872 and 1873, GEOGRAPHICAL AND GEOLOGICAL EXPLORATIONS AND SURVEYS WEST OF THE FIRST LIEUTENANT george m. WHEELER, CORPS OF ENGINEERS, IN CHARGE. Dr. F. KAMPF and J. H. CLARK, CIVILIAN ASTRONOMICAL ASSISTANTS. WASHINGTON: PRINTING OFFICE. 1874. TABLE OF CONTENTS. Order of sequence for an astronomical report Abbreviations and signs Cheyenne station . . Description of observatory Description of instruments used Connections, (telegraphic) Tabulation of stars used Instrumental values. Uniform tables of time reductions at sending and receiving stations Correction and rate of chronometers . Grouping of series of exchange of signals Personal equation Probable error. Resulting longitude. Reduction of the latitude observations Mean places of stars used for determination of latitude Observations for latitude Computations for latitude Resulting astronomical co-ordinates Colorado Springs station, Colorado Territory Geographical position of station Tabulation of stars used for time Corrections and rates of chronometers Signals for determination of longitude between Salt Lake City and Colorado Springs Final results for longitude.. Mean places of stars for 1873 used for determination of latitude Observations for latitude Computations for latitude Discussion of probable error Astronomical co-ordinates . Instructions for conducting observations, field-season of 1873 |
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