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 11
There were no rains , nor any clouds , and , with the exception of two or three windy nights , the elements presented no obstacle whatever to a continued series of observations . In the early morning it would become cold enough to form ...
There were no rains , nor any clouds , and , with the exception of two or three windy nights , the elements presented no obstacle whatever to a continued series of observations . In the early morning it would become cold enough to form ...
Page 12
They are the months that fall between the rainy season of the summer and the stormy weather of the winter . The following table shows the direction of the wind , and the estimated force , from 7 a . m . to 7 p . m . and from 7 p . m ...
They are the months that fall between the rainy season of the summer and the stormy weather of the winter . The following table shows the direction of the wind , and the estimated force , from 7 a . m . to 7 p . m . and from 7 p . m ...
Page 50
The prevailing winds were from the northeast or southeast , commencing at 10 or 11 o'clock a . m . ... The following table shows the general direction of the wind at 7 a . m . , 2 p . m . , and 9 p . m . , giving the mean or prevailing ...
The prevailing winds were from the northeast or southeast , commencing at 10 or 11 o'clock a . m . ... The following table shows the general direction of the wind at 7 a . m . , 2 p . m . , and 9 p . m . , giving the mean or prevailing ...
Page 72
... 5.6 17.3 21.2 12 53.0 21.0 17.2 9 77.0 8 44.8 I 15.0 Very 35.4 wind . 17.0 20. I 15 64.0 25.8 13.9 2 64.9 19.0 20.0 12 22.5 21.3 17.3 6 18.0 19.3 20.0 16.0 21.0 7 71.8 20.0 19.2 9.55.2 18.0 21.3 20.8 18.0 22.4 16.5 16 70.0 20.3 19.0 ...
... 5.6 17.3 21.2 12 53.0 21.0 17.2 9 77.0 8 44.8 I 15.0 Very 35.4 wind . 17.0 20. I 15 64.0 25.8 13.9 2 64.9 19.0 20.0 12 22.5 21.3 17.3 6 18.0 19.3 20.0 16.0 21.0 7 71.8 20.0 19.2 9.55.2 18.0 21.3 20.8 18.0 22.4 16.5 16 70.0 20.3 19.0 ...
Page 78
Undulations in the atmosphere , heavy winds , and great changes in temperature constantly affected the instrument . It is customary in this office to select for latitude only thirty - five pairs of stars , which have to be observed on ...
Undulations in the atmosphere , heavy winds , and great changes in temperature constantly affected the instrument . It is customary in this office to select for latitude only thirty - five pairs of stars , which have to be observed on ...
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Common terms and phrases
61 Cygni 9 Draconis Adopted Aquarii Aquilæ astronomical August azimuth Capricorni Cephei Changed charge Cheyenne chron chronograph chronom chronometer circuit Clamp clear Cloudy Colo Colorado Springs Colorado Springs chronometer COLORADO TERRITORY connection Corrections Cygni Date Description Determination difference Draconis Engineers eter exchange final result Groom heavy Herculis hour July 30 late Latitude LATITUDE-OBSERVATIONS-Continued Level longitude Lyræ Mean Mean at 24h Mean for 17h Meridian Micrometer star minutes Name of Star nights Normal Equations observations Observations for Latitude.-Station October October 18 Ophiuchi pair Pegasi Piscium places probable error rain reading received record REDUCTION Remarks Sagittarii Salt Lake chron SALT LAKE CITY SALT LAKE OBSERVATORY shows Springs chron station SURVEYS TABLES OF TIME-REDUCTIONS TIME-REDUCTIONS AT RECEIVING-STATION-Continued UNIFORM TABLES United Ursa UTAH TERRITORY values Washington Western wind wires Wyoming Territory
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.