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 8
... error of chronometer . = ST - 4T - 4 , T . 4Terror of the chronometer . v = difference between mean final correction of chronometer and 4T . REPORT ON ASTRONOMICAL OPERATIONS , CONDUCTED DURING THE FIELD - Abbreviations and signs.
... error of chronometer . = ST - 4T - 4 , T . 4Terror of the chronometer . v = difference between mean final correction of chronometer and 4T . REPORT ON ASTRONOMICAL OPERATIONS , CONDUCTED DURING THE FIELD - Abbreviations and signs.
Page 29
... Difference of longitude . Means . 1872 . October 5 . h . m . S. Cheyenne chron . O 55 6.20 Salt Lake .. Salt Lake ... differences there may 29.
... Difference of longitude . Means . 1872 . October 5 . h . m . S. Cheyenne chron . O 55 6.20 Salt Lake .. Salt Lake ... differences there may 29.
Page 30
... differences there may have been between Mr. Austin and myself in recording time , technically known as the personal equation , is still involved in the lon- gitude . To determine this difference , we had two nights ' observations ...
... differences there may have been between Mr. Austin and myself in recording time , technically known as the personal equation , is still involved in the lon- gitude . To determine this difference , we had two nights ' observations ...
Page 68
... differences where I find the full 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 ...
... differences where I find the full 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 ...
Page 69
... Difference of longitude . Double wave - time . Means . 1873 . July 29 . Salt Lake Colo . Springs chron . Salt Lake chron . h . m . 18 9 0.II S. S. h . m . - 0 10 11.72 h . m . 17 58 48.39 S. h . m . S. S. S. 923 24.95 +8 7 5.46 17 30 ...
... Difference of longitude . Double wave - time . Means . 1873 . July 29 . Salt Lake Colo . Springs chron . Salt Lake chron . h . m . 18 9 0.II S. S. h . m . - 0 10 11.72 h . m . 17 58 48.39 S. h . m . S. S. S. 923 24.95 +8 7 5.46 17 30 ...
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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