Report Upon the Determination of the Astronomical Co-ordinates of the Primary Stations at Cheyenne, Wyoming Territory, and Colorado Springs, Colorado Territory, Made During the Years 1872 and 1873: Geographical and Geological Explorations and Surveys West of the One Hundredth Meridian, First Lieut. George M. Wheeler, Corps of Engineers, in Charge. Dr. F. Kampf and J. H. Clark, Civilian Astronomical AssistantsU.S. Government Printing Office, 1874 - 82 pages |
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Page 3
... 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 ...
... 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 ...
Page 5
... value to officers engaged upon explorations , surveys , and reconnaissances in the western country , I have ... values , that it seems desirable that some general and uniform plan should be adopted for the report at least , if ...
... value to officers engaged upon explorations , surveys , and reconnaissances in the western country , I have ... values , that it seems desirable that some general and uniform plan should be adopted for the report at least , if ...
Page 7
... values ; circumstances of telegraphic communication , i . e . , length of circuit , number of batteries , repeaters , & c . 9. Uniform tables of time - reductions at receiving - station . 10. Uniform tables of time - reductions at ...
... values ; circumstances of telegraphic communication , i . e . , length of circuit , number of batteries , repeaters , & c . 9. Uniform tables of time - reductions at receiving - station . 10. Uniform tables of time - reductions at ...
Page 13
... values are , for one division of the micrometer- screw , o " .6216 ; of the striding - level A , 1 " .21 ; and of the zenith - level , 1 " .10 . ( b . ) Chronograph . The record of the observations for time , as well as the exchange of ...
... values are , for one division of the micrometer- screw , o " .6216 ; of the striding - level A , 1 " .21 ; and of the zenith - level , 1 " .10 . ( b . ) Chronograph . The record of the observations for time , as well as the exchange of ...
Page 15
... VALUES . The values of the implements pertaining to zenith - instrument No. 28 are , for one division of the micrometer - screw , o " .622 ; of the striding - level A , 1 " .21 ; and of the zenith - level , I " . 10. The wire which made ...
... VALUES . The values of the implements pertaining to zenith - instrument No. 28 are , for one division of the micrometer - screw , o " .622 ; of the striding - level A , 1 " .21 ; and of the zenith - level , I " . 10. The wire which made ...
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Common terms and phrases
12-Year Cat 21h local sidereal 30 late 30m local sidereal 50 Draconis 61 Cygni 9 Draconis Aquarii August bB aA cC Capricorni Cassiopeia Ceti Cheyenne chron chronograph chronom Clamp Cloudy all day Colo Colorado Springs chronometer COLORADO TERRITORY Computations for Latitude Correction of chronometer Date Delphini Description of observatory eter final result Groom Groombridge 3241 Groombridge 4163 Half-sum of dec HARVARD COLLEGE OBSERVATORY Herculis July 30 latitude Observations Latitude of Cheyenne LATITUDE-OBSERVATIONS-Continued Level linations Mean at 24h Mean for 19h Meridian Micrometer Remarks Micrometer star Name of Star nights Normal Equations Number Half-sum Observations for Latitude.-Station October 14 October 16 Pegasi Piscium probable error REDUCTION Right Ascension Salt Lake chron SALT LAKE CITY SALT LAKE OBSERVATORY Springs chron T. D. Oct TABLES OF TIME-REDUCTIONS Tabulation of Stars TIME-REDUCTIONS AT RECEIVING-STATION-Continued UNIFORM TABLES Ursa Minoris UTAH TERRITORY wires Wyoming Territory ΔΤ ΙΟ Ο.ΟΙ
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Page 53 - Ocean, the first thing which strikes us is, that, the north-east and south-east monsoons, which are found the one on the north and the other on...
Page 5 - Printing-Office, and that fifteen hundred copies be furnished on requisition from this Office. Very respectfully, your obedient servant, AA HUMPHREYS, Brigadier-Oeneral and Chief of Engineers.