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 3
Description of observatory Description of instruments used Connections , ( telegraphic ) Tabulation of stars used Instrumental values . Uniform tables of time reductions at sending and receiving stations Correction and rate of ...
Description of observatory Description of instruments used Connections , ( telegraphic ) Tabulation of stars used Instrumental values . Uniform tables of time reductions at sending and receiving stations Correction and rate of ...
Page 5
As this report contains information of value to officers engaged upon explorations , surveys , and ... and those known as instrumental , have now become reduced to such small and nearly equable values , that it seems desirable that some ...
As this report contains information of value to officers engaged upon explorations , surveys , and ... and those known as instrumental , have now become reduced to such small and nearly equable values , that it seems desirable that some ...
Page 7
7. Tabulation of stars used , and number of observations . 8. Instrumental values ; circumstances of telegraphic communication , i . e . , length of circuit , number of batteries , repeaters , & c ...
7. Tabulation of stars used , and number of observations . 8. Instrumental values ; circumstances of telegraphic communication , i . e . , length of circuit , number of batteries , repeaters , & c ...
Page 13
The instrumental values are , for one division of the micrometerscrew , o'.6216 ; of the striding - level A , 1 " .21 ; and of the zenith - level , 1 ′′ .10 .
The instrumental values are , for one division of the micrometerscrew , o'.6216 ; of the striding - level A , 1 " .21 ; and of the zenith - level , 1 ′′ .10 .
Page 15
INSTRUMENTAL VALUES . The values of the implements pertaining to zenith - instrument No. 28 are , for one division of the micrometer - screw , o " .622 ; of the striding - level A , 1 " .21 ; and of the zenith - level , 1'.10 .
INSTRUMENTAL VALUES . The values of the implements pertaining to zenith - instrument No. 28 are , for one division of the micrometer - screw , o " .622 ; of the striding - level A , 1 " .21 ; and of the zenith - level , 1'.10 .
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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
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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 |