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 7
Description of observatory ; including personnel of party , name of telegraphoperator , and name of telegraph - company whose wire has been employed . 5. Description of instruments used . 6. Points with which connections were made ...
Description of observatory ; including personnel of party , name of telegraphoperator , and name of telegraph - company whose wire has been employed . 5. Description of instruments used . 6. Points with which connections were made ...
Page 8
Tobserved time reduced to the mean of wires and corrected for rate . T'observed time corrected for instrumental errors . AR . apparent right ascension of star . 4 Tresulting error of the chronometer after the mean of the wires is ...
Tobserved time reduced to the mean of wires and corrected for rate . T'observed time corrected for instrumental errors . AR . apparent right ascension of star . 4 Tresulting error of the chronometer after the mean of the wires is ...
Page 13
The observatory was west of the telegraph - office , and the main connection was effected by a loop into one of the main overland wires and put in communication with Salt Lake by a switch at Ogden . The local connections , including the ...
The observatory was west of the telegraph - office , and the main connection was effected by a loop into one of the main overland wires and put in communication with Salt Lake by a switch at Ogden . The local connections , including the ...
Page 15
The wire which made the circuit between the stations Salt Lake and Cheyenne , counting the distance along the railroad ... which had always to be called to " straighten " the wire before the work of exchanging could be commenced .
The wire which made the circuit between the stations Salt Lake and Cheyenne , counting the distance along the railroad ... which had always to be called to " straighten " the wire before the work of exchanging could be commenced .
Page 51
A ground - wire was used after switching in the Western Union office to complete the circuit . In the northeast corner of the tent ... Wires for the connection of the chronometer and breaking - key were fastened to the tent - frame .
A ground - wire was used after switching in the Western Union office to complete the circuit . In the northeast corner of the tent ... Wires for the connection of the chronometer and breaking - key were fastened to the tent - frame .
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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.
Bibliographic information
| Title | 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 ... |
| Author | Geographical Surveys West of the 100th Meridian (U.S.) |
| Publisher | U.S. Government Printing Office, 1874 |
| Original from | Harvard University |
| Digitized | 20 Nov 2007 |
| Length | 82 pages |
| Export Citation | BiBTeX EndNote RefMan |