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 |
From inside the book
Results 1-5 of 16
Page 3
... longitude between Salt Lake City and Colorado Springs 65-67 Final results for longitude 68 Mean places of stars for 1873 used for determination of latitude 69 Observations for latitude 70-73 Computations for latitude 74-76 Discussion of ...
... longitude between Salt Lake City and Colorado Springs 65-67 Final results for longitude 68 Mean places of stars for 1873 used for determination of latitude 69 Observations for latitude 70-73 Computations for latitude 74-76 Discussion of ...
Page 7
... Longitude by Telegraph ; Latitude by Zenith Telescope , ( Talcott's method . ) 1. Geographical position of station . 2. Physical - geography details ; especially all physical peculiarities . 3. Meteorological conditions , both general ...
... Longitude by Telegraph ; Latitude by Zenith Telescope , ( Talcott's method . ) 1. Geographical position of station . 2. Physical - geography details ; especially all physical peculiarities . 3. Meteorological conditions , both general ...
Page 14
... longitude . There were several other evenings when efforts were made in this direction , but failed from causes beyond my control . Mr. Austin did the observing at Salt Lake , while the observations at Cheyenne were made by myself , and ...
... longitude . There were several other evenings when efforts were made in this direction , but failed from causes beyond my control . Mr. Austin did the observing at Salt Lake , while the observations at Cheyenne were made by myself , and ...
Page 29
... longitude each way each night and the mean of all the nights : Signals sent from- Stations of record . Means of signals Chronometric sent and received . errors . Local sidereal times . Difference Means . of longitude . 1872 . October 5 ...
... longitude each way each night and the mean of all the nights : Signals sent from- Stations of record . Means of signals Chronometric sent and received . errors . Local sidereal times . Difference Means . of longitude . 1872 . October 5 ...
Page 30
... LONGITUDE . From the foregoing I conclude that the difference of longitude between Salt Lake City observatory and the station at Cheyenne is 28m 199.437 ; which difference , how- ever , is still subject to correction for personal ...
... LONGITUDE . From the foregoing I conclude that the difference of longitude between Salt Lake City observatory and the station at Cheyenne is 28m 199.437 ; which difference , how- ever , is still subject to correction for personal ...
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Common terms and phrases
12-Year Cat 24h local sidereal 30m local sidereal 38 Cassiopeiæ 50 Draconis 61 Cygni 9 Draconis Andromedæ Aquilæ August bB aA CC Capricorni Ceti Cheyenne chron chronograph chronom Clamp Cloudy all day Colo Colorado Springs chronometer COLORADO TERRITORY Computations for Latitude Date Delphini Draconis 22 eter final result Groom Groombridge 3241 Groombridge 4163 Half-sum of dec HARVARD COLLEGE OBSERVATORY July 31 Latitude of Cheyenne LATITUDE-OBSERVATIONS-Continued Level linations longitude Mean at 24h Mean for 17h Microm Micrometer star Name of Star nights Normal Equations Number Half-sum Observations for Latitude October 14 October 16 Ophiuchi Pegasi Piscium probable error REDUCTION Remarks Right Ascension Sagittarii Salt Lake chron SALT LAKE CITY SALT LAKE OBSERVATORY Springs chron ẞ Aquarii ẞ Cephei ẞ Lyræ TABLES OF TIME-REDUCTIONS Tabulation of Stars TIME-REDUCTIONS AT RECEIVING-STATION-Continued UNIFORM TABLES Ursæ Minoris UTAH TERRITORY wires Wyoming Territory δε ΔΤ
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.