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
Mr. F. R. Simonton was my assistant here , and kept , in conjunction with C. Herbert , an hourly meteorological record , besides his other duties as assistant . ( 5. ) DESCRIPTION OF INSTRUMENTS USED . ( a . ) Transit .
Mr. F. R. Simonton was my assistant here , and kept , in conjunction with C. Herbert , an hourly meteorological record , besides his other duties as assistant . ( 5. ) DESCRIPTION OF INSTRUMENTS USED . ( a . ) Transit .
Page 29
This table shows the result obtained for longitude each way each night and the mean of all the nights : Chronometric Signals sent fromStations of record . Means of signals sent and received . Local sidereal times .
This table shows the result obtained for longitude each way each night and the mean of all the nights : Chronometric Signals sent fromStations of record . Means of signals sent and received . Local sidereal times .
Page 30
Whatever differences there may have been between Mr. Austin and myself in recording time , technically known as the personal equation , is still involved in the longitude ... The record , in both instances , was made on a chronograph .
Whatever differences there may have been between Mr. Austin and myself in recording time , technically known as the personal equation , is still involved in the longitude ... The record , in both instances , was made on a chronograph .
Page 69
Signals sent from Stations of record . Mean of sig . nals sent and received . Time - correction . Corrected time . Difference of Double longitude . wave - time . 1873 . July 29 . h . m . S. h . m . S. h . m . S. h . m . S. S. Colo .
Signals sent from Stations of record . Mean of sig . nals sent and received . Time - correction . Corrected time . Difference of Double longitude . wave - time . 1873 . July 29 . h . m . S. h . m . S. h . m . S. h . m . S. S. Colo .
Page 80
... the sending of the signals , the strict following - out of the above is not necessary . These instructions are made with the understanding that a twenty - six or thirtytwo inch Würdemann instrument is used , with recording - apparatus.
... the sending of the signals , the strict following - out of the above is not necessary . These instructions are made with the understanding that a twenty - six or thirtytwo inch Würdemann instrument is used , with recording - apparatus.
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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 |