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 12
... clear all the time . Such an atmosphere , at an elevation of 6,000 feet , could not be otherwise than favor- able for astronomical work . Date . General direction of wind . Estimated force of wind . 7 a . m . to 7 p . m . 7 p.m. to 7 a ...
... clear all the time . Such an atmosphere , at an elevation of 6,000 feet , could not be otherwise than favor- able for astronomical work . Date . General direction of wind . Estimated force of wind . 7 a . m . to 7 p . m . 7 p.m. to 7 a ...
Page 49
... clear outlook to the north , south , and east . Looking west , prominent peaks and foot - hills of the Rocky Mountain range are seen running north and south ; Pike's Peak , immediately west , being the highest , and Chey- enne Mountain ...
... clear outlook to the north , south , and east . Looking west , prominent peaks and foot - hills of the Rocky Mountain range are seen running north and south ; Pike's Peak , immediately west , being the highest , and Chey- enne Mountain ...
Page 50
... clear after 12 p . m . Clear ; heavy dew in the night . 30 N. SW . NW . I 3 2 Heavy wind and rain in the afternoon . 31 N. SE . N. I T I Rain from the west at 3 p . m . August I N. NE . NW . 2 2 NE . S. 5 3 3 Heavy shower in the ...
... clear after 12 p . m . Clear ; heavy dew in the night . 30 N. SW . NW . I 3 2 Heavy wind and rain in the afternoon . 31 N. SE . N. I T I Rain from the west at 3 p . m . August I N. NE . NW . 2 2 NE . S. 5 3 3 Heavy shower in the ...
Page 80
... clear at both stations ; that is , the observers in charge , after having completed the necessary arrangements for the observations and exchange of signals , will , from this time on , exchange signals each night that shall be fair at ...
... clear at both stations ; that is , the observers in charge , after having completed the necessary arrangements for the observations and exchange of signals , will , from this time on , exchange signals each night that shall be fair at ...
Page 81
... clear understanding of the case ; as an observer will be held responsible should he leave the station and go to another before he is certain that the results upon final computation would prove satisfactory . 2. - Observations for ...
... clear understanding of the case ; as an observer will be held responsible should he leave the station and go to another before he is certain that the results upon final computation would prove satisfactory . 2. - Observations for ...
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Common terms and phrases
12-Year Cat 21h local sidereal 30 late 30m local sidereal 50 Draconis 61 Cygni 9 Draconis Aquarii August bB aA cC Capricorni Cassiopeia Ceti Cheyenne chron chronograph chronom Clamp Cloudy all day Colo Colorado Springs chronometer COLORADO TERRITORY Computations for Latitude Correction of chronometer Date Delphini Description of observatory eter final result Groom Groombridge 3241 Groombridge 4163 Half-sum of dec HARVARD COLLEGE OBSERVATORY Herculis July 30 latitude Observations Latitude of Cheyenne LATITUDE-OBSERVATIONS-Continued Level linations Mean at 24h Mean for 19h Meridian Micrometer Remarks Micrometer star Name of Star nights Normal Equations Number Half-sum Observations for Latitude.-Station October 14 October 16 Pegasi Piscium probable error REDUCTION Right Ascension Salt Lake chron SALT LAKE CITY SALT LAKE OBSERVATORY Springs chron T. D. Oct 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
Popular passages
Page 53 - Ocean, the first thing which strikes us is, that, the north-east and south-east monsoons, which are found the one on the north and the other on...
Page 5 - Printing-Office, and that fifteen hundred copies be furnished on requisition from this Office. Very respectfully, your obedient servant, AA HUMPHREYS, Brigadier-Oeneral and Chief of Engineers.