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 5
Page 13
... breaks , and easily read off . ( c . ) Chronometer . The chronometer in use here was the Negus break - circuit No. 1499. It had a gaining - rate , +0.054 , hourly average , at a mean temperature of 50 ° . The break- arrangement got out ...
... breaks , and easily read off . ( c . ) Chronometer . The chronometer in use here was the Negus break - circuit No. 1499. It had a gaining - rate , +0.054 , hourly average , at a mean temperature of 50 ° . The break- arrangement got out ...
Page 14
... break , or receive that of the connected station on the chronographic sheet , as desired . The nights of the 1st , 3d , 8th , 9th , 10th , 11th , and 12th were occupied on latitude , in which time 257 results were obtained . The 5th ...
... break , or receive that of the connected station on the chronographic sheet , as desired . The nights of the 1st , 3d , 8th , 9th , 10th , 11th , and 12th were occupied on latitude , in which time 257 results were obtained . The 5th ...
Page 52
... Break Circuit Key Chronograph Chronometer Local Battery XII X XXI ་ ་ Relay 1 Sounder 3 SWITCH 1. - Closed when receiving from connected station ; Nos . 2 and 3 open . SWITCH 2. - Closed when sending to connected station ; Nos . 1 and 3 ...
... Break Circuit Key Chronograph Chronometer Local Battery XII X XXI ་ ་ Relay 1 Sounder 3 SWITCH 1. - Closed when receiving from connected station ; Nos . 2 and 3 open . SWITCH 2. - Closed when sending to connected station ; Nos . 1 and 3 ...
Page 68
... breaks for the seconds of Salt Lake and Colorado Springs coincide . By meas- uring the differences where I find the full minute , I develop the fact that the Colorado Springs chronometer breaks oa.110 later than the Salt Lake break ...
... breaks for the seconds of Salt Lake and Colorado Springs coincide . By meas- uring the differences where I find the full minute , I develop the fact that the Colorado Springs chronometer breaks oa.110 later than the Salt Lake break ...
Page 81
... break - circuit key , at about ten seconds apart , at fractional parts of a second , making a series of thirty - one arbitrary signals during the five minutes . In order that the observer at a station may conclude that he has ...
... break - circuit key , at about ten seconds apart , at fractional parts of a second , making a series of thirty - one arbitrary signals during the five minutes . In order that the observer at a station may conclude that he has ...
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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