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 13
... minute . Removing the paper from the cylinder , both the minutes and the seconds will be found , if the instru- ment is working properly , recorded in parallel lines , and the culminations of the stars observed , distinctly marked by ...
... minute . Removing the paper from the cylinder , both the minutes and the seconds will be found , if the instru- ment is working properly , recorded in parallel lines , and the culminations of the stars observed , distinctly marked by ...
Page 51
... minutes , and reading to single minutes by means of the vernier . Another circle was affixed to the upper part of the tube , divided also also to twenty minutes , and having in the center a level used in latitude - observations for ...
... minutes , and reading to single minutes by means of the vernier . Another circle was affixed to the upper part of the tube , divided also also to twenty minutes , and having in the center a level used in latitude - observations for ...
Page 68
... minute , I develop the fact that the Colorado Springs chronometer breaks 0.110 later than the Salt Lake break ; therefore the mean of the signals sent from Salt Lake and received on the Colorado Springs chronograph is , 18h 48m 528.048 ...
... minute , I develop the fact that the Colorado Springs chronometer breaks 0.110 later than the Salt Lake break ; therefore the mean of the signals sent from Salt Lake and received on the Colorado Springs chronograph is , 18h 48m 528.048 ...
Page 81
... minutes in time , the connecting or Salt Lake station sending for the first five minutes and the distant station receiving , and vice versa . In addition to these , which may be known as the chronograph - signals , arbitrary signals ...
... minutes in time , the connecting or Salt Lake station sending for the first five minutes and the distant station receiving , and vice versa . In addition to these , which may be known as the chronograph - signals , arbitrary signals ...
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Common terms and phrases
12-Year Cat 24h local sidereal 30 late 30m local sidereal 38 Cassiopeiæ 61 Cygni 79 Draconis Aquilæ August bB aA cC Capricorni Ceti Cheyenne chron chronograph chronom circuit Clamp Cloudy all day Colorado Springs chronometer COLORADO TERRITORY Computations for Latitude Correction of chronometer Date Delphini eter final result Groom Groombridge 3241 Groombridge 4163 Half-sum of dec Herculis instrument July 28 July 30 Latitude of Cheyenne LATITUDE-OBSERVATIONS-Continued Level linations longitude Mean at 24h Mean for 19h Meridian Microm Micrometer Remarks Micrometer star Name of Star nights Normal Equations Number Half-sum O.II Observations for Latitude.-Station October 14 October 18 Pegasi personal equation probable error REDUCTION Right Ascension Sagittarii Salt Lake chron SALT LAKE CITY SALT LAKE OBSERVATORY Springs chron SURVEYS WEST TABLES OF TIME-REDUCTIONS Tabulation of Stars TIME-REDUCTIONS AT RECEIVING-STATION-Continued UNIFORM TABLES Ursa Minoris UTAH TERRITORY wires Wyoming Territory ΔΤ ΙΟ