Report Upon the Determination of the Astronomical Coordinates 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 MeridianU.S. Government Printing Office, 1874 - 82 pages |
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Page 13
The chronometric breaks are made every second , except the sixtieth , which is omitted , to mark the minute . ... and the culminations of the stars observed , distinctly marked by arbitrary breaks , and easily read off . ( c . ) ...
The chronometric breaks are made every second , except the sixtieth , which is omitted , to mark the minute . ... and the culminations of the stars observed , distinctly marked by arbitrary breaks , and easily read off . ( c . ) ...
Page 14
... it required only the simple movement of sliding a switch - button to cut off or put on either circuit , and thus send the chronometric break , or receive that of the connected station on the chronographic sheet , as desired .
... it required only the simple movement of sliding a switch - button to cut off or put on either circuit , and thus send the chronometric break , or receive that of the connected station on the chronographic sheet , as desired .
Page 52
The galvanic connections were made by means of a switch - board , the connections of which are given in the following diagram : Chronograph Break Circuit Key Main Line . Main Line Local Battery | Chronometer XI / 1 YI 111 11 5 Pelay ...
The galvanic connections were made by means of a switch - board , the connections of which are given in the following diagram : Chronograph Break Circuit Key Main Line . Main Line Local Battery | Chronometer XI / 1 YI 111 11 5 Pelay ...
Page 68
By measuring the differences where I find the full minute , I develop the fact that the Colorado Springs chronometer breaks 08.110 later than the Salt Lake break ; therefore the mean of the signals sent from Salt Lake and received on ...
By measuring the differences where I find the full minute , I develop the fact that the Colorado Springs chronometer breaks 08.110 later than the Salt Lake break ; therefore the mean of the signals sent from Salt Lake and received on ...
Page 81
In addition to these , which may be known as the chronograph - signals , arbitrary signals will be sent , by the use of a break - circuit key , at about ten seconds apart , at fractional parts of a second , making a series of thirty ...
In addition to these , which may be known as the chronograph - signals , arbitrary signals will be sent , by the use of a break - circuit key , at about ten seconds apart , at fractional parts of a second , making a series of thirty ...
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Common terms and phrases
30m local sidereal 61 Cygni 9 Draconis aA cC Adopted Aquarii Aquilæ ASSISTANTS astronomical August breaks Capricorni Cephei Changed charge Cheyenne chron chronograph chronom circuit Clamp clear Cloudy Colo Colorado Springs chronometer COLORADO TERRITORY connections Corrections Cygni Date Declination Delphini Determination difference Draconis Engineers eter exchange feet final result GEOGRAPHICAL giving Groom heavy Herculis hour July 31 late Latitude LATITUDE-OBSERVATIONS—Continued Level longitude Lyræ Mean Meridian Micrometer star miles minutes Name of Star nights Normal Equations observations October October 14 Ophiuchi pair Pegasi Piscium placed probable error rain reading received record REDUCTION Remarks Right Sagittarii Salt Lake chron Salt Lake City SALT LAKE OBSERVATORY shows signals sent Springs chron station SURVEYS TABLES OF TIME-REDUCTIONS tent UNIFORM TABLES United Ursæ UTAH TERRITORY Washington Western wind wires Wyoming Territory аА сс
Bibliographic information
| Title | Report Upon the Determination of the Astronomical Coordinates 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 |
| Author | Geographical Surveys West of the 100th Meridian (U.S.) |
| Publisher | U.S. Government Printing Office, 1874 |
| Original from | Cornell University |
| Digitized | 28 Feb 2013 |
| Length | 82 pages |
| Export Citation | BiBTeX EndNote RefMan |