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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Results 1-5 of 8
Page 12
... shows the direction of the wind , and the estimated force , from 7 a . m . to 7 p . m . and from 7 p . m . to 7 a . m . The weather was clear all the time . Such an atmosphere , at an elevation of 6,000 feet , could not be otherwise ...
... shows the direction of the wind , and the estimated force , from 7 a . m . to 7 p . m . and from 7 p . m . to 7 a . m . The weather was clear all the time . Such an atmosphere , at an elevation of 6,000 feet , could not be otherwise ...
Page 27
... 33.54 Normal Equations . 7 dt + 5.91a — - 8.16c = - 3.27 - a = 0.950 5.91 St + 70.49 a · 82.36c75.09 - 8.16 dt – 82.36a + 122.80 c = + 90.98 - - c = +0.140 St + 0.490 The following table shows the corrections and the rate of 27.
... 33.54 Normal Equations . 7 dt + 5.91a — - 8.16c = - 3.27 - a = 0.950 5.91 St + 70.49 a · 82.36c75.09 - 8.16 dt – 82.36a + 122.80 c = + 90.98 - - c = +0.140 St + 0.490 The following table shows the corrections and the rate of 27.
Page 28
... shows the corrections and the rate of the chronometers used at Cheyenne and Salt Lake City : CHEYENNE . - NEGUS 1499 . Date . Local sidereal hour . Correction of chronometer . Rate per hour . 1872 . October 5 h . h . m . S. 22.50 - I 52 ...
... shows the corrections and the rate of the chronometers used at Cheyenne and Salt Lake City : CHEYENNE . - NEGUS 1499 . Date . Local sidereal hour . Correction of chronometer . Rate per hour . 1872 . October 5 h . h . m . S. 22.50 - I 52 ...
Page 29
... shows the result obtained for longitude each way each night and the mean of all the nights : Signals sent from- Stations of record . Means of signals sent and received . errors . Chronometric Local sidereal times . Difference of ...
... shows the result obtained for longitude each way each night and the mean of all the nights : Signals sent from- Stations of record . Means of signals sent and received . errors . Chronometric Local sidereal times . Difference of ...
Page 30
... shows a large difference — Mr . Austin observing later than myself , as may be seen by a statement of the following clock - errors : SALT LAKE CITY , UTAH , September 13 , 1872 . m . S. Clark . 2 37.95 - 08.20 Austin 2 38.15 NAVAL ...
... shows a large difference — Mr . Austin observing later than myself , as may be seen by a statement of the following clock - errors : SALT LAKE CITY , UTAH , September 13 , 1872 . m . S. Clark . 2 37.95 - 08.20 Austin 2 38.15 NAVAL ...
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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