Report Upon the Determination of the Astronomical Coordinates 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 MeridianU.S. Government Printing Office, 1874 - 82 pages |
From inside the book
Results 1-5 of 8
Page 7
... circuit , number of batteries , repeaters , & c . 9. Uniform tables of time - reductions at receiving - station . 10. Uniform tables of time - reductions at sending - station . 11. Grouping of series of exchange - signals , including ...
... circuit , number of batteries , repeaters , & c . 9. Uniform tables of time - reductions at receiving - station . 10. Uniform tables of time - reductions at sending - station . 11. Grouping of series of exchange - signals , including ...
Page 13
... circuit with the chronometer , records its breaks . The chronometric breaks are made every second , except the sixtieth , which is omitted , to mark the minute . Removing the paper from the cylinder , both the minutes and the seconds ...
... circuit with the chronometer , records its breaks . The chronometric breaks are made every second , except the sixtieth , which is omitted , to mark the minute . Removing the paper from the cylinder , both the minutes and the seconds ...
Page 14
... circuit closed , it required only the simple movement of sliding a switch - button to cut off or put on either circuit , and thus send the chrono- metric break , or receive that of the connected station on the chronographic sheet , as ...
... circuit closed , it required only the simple movement of sliding a switch - button to cut off or put on either circuit , and thus send the chrono- metric break , or receive that of the connected station on the chronographic sheet , as ...
Page 15
... circuit between the stations Salt Lake and Cheyenne , counting the distance along the railroad , is some 550 miles , and does not include any battery or repeating - office . At Cheyenne there was a repeating - office ; but as the ...
... circuit between the stations Salt Lake and Cheyenne , counting the distance along the railroad , is some 550 miles , and does not include any battery or repeating - office . At Cheyenne there was a repeating - office ; but as the ...
Page 51
... circuit . In the northeast corner of the tent the chronograph was placed upon a solid and insulated framework . Wires for the connection of the chronometer and breaking - key were fastened to the tent - frame . The levels were also set ...
... circuit . In the northeast corner of the tent the chronograph was placed upon a solid and insulated framework . Wires for the connection of the chronometer and breaking - key were fastened to the tent - frame . The levels were also set ...
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Common terms and phrases
12-Year Cat 21h local sidereal 30m local sidereal 50 Draconis 61 Cygni 9 Draconis Aquarii August bB aA cC Capricorni Cassiopeiæ Ceti Cheyenne chron chronograph chronom circuit Clamp Cloudy all day Colo Colorado Springs chronometer COLORADO TERRITORY Computations for Latitude Correction of chronometer 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 17h Micrometer star Name of Star nights Normal Equations Number Half-sum O.II Observations for Latitude.-Station October 14 October 19 Pegasi personal equation Piscium probable error REDUCTION Remarks Right Ascension Sagittarii Salt Lake chron SALT LAKE CITY SALT LAKE OBSERVATORY Springs chron ß Lyræ 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