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 6-10 of 41
Page 12
... observations into the small hours of the night . From the experience of this season , and that of many others which I have undergone in former years in astronomical work , both on the plains and in the mountains , I am of the opinion ...
... observations into the small hours of the night . From the experience of this season , and that of many others which I have undergone in former years in astronomical work , both on the plains and in the mountains , I am of the opinion ...
Page 13
... observations for time , as well as the exchange of signals , with one exception ( the night of the 14th ) , was made ... observing - keys , were made by means of a switch - board , which also received the main circuit . The various wires ...
... observations for time , as well as the exchange of signals , with one exception ( the night of the 14th ) , was made ... observing - keys , were made by means of a switch - board , which also received the main circuit . The various wires ...
Page 14
... observing at Salt Lake , while the observations at Cheyenne were made by myself , and also the longitude reductions for both stations . Prof. W. A. Rogers , of Harvard College Observatory , computed the latitude - observations , and ...
... observing at Salt Lake , while the observations at Cheyenne were made by myself , and also the longitude reductions for both stations . Prof. W. A. Rogers , of Harvard College Observatory , computed the latitude - observations , and ...
Page 15
... observations were made Salt Lake itself was only a relay - office ; but there was a switch at Ogden , which had always to be called to " straighten " the wire before the work of exchanging could be commenced . Powerful batteries have ...
... observations were made Salt Lake itself was only a relay - office ; but there was a switch at Ogden , which had always to be called to " straighten " the wire before the work of exchanging could be commenced . Powerful batteries have ...
Page 30
... observations together ; the one at Salt Lake in September , 1872 , the other at the Naval Observatory , May , 1873 . In Salt Lake we used different instruments on the same stars , in Washington the same instrument on different stars ...
... observations together ; the one at Salt Lake in September , 1872 , the other at the Naval Observatory , May , 1873 . In Salt Lake we used different instruments on the same stars , in Washington the same instrument on different stars ...
Other editions - View all
Common terms and phrases
12-Year Cat 21h local sidereal 30 late 30m local sidereal 50 Draconis 61 Cygni 9 Draconis Aquarii August bB aA cC Capricorni Cassiopeia Ceti Cheyenne chron chronograph chronom Clamp Cloudy all day Colo Colorado Springs chronometer COLORADO TERRITORY Computations for Latitude Correction of chronometer Date Delphini Description of observatory eter final result Groom Groombridge 3241 Groombridge 4163 Half-sum of dec HARVARD COLLEGE OBSERVATORY Herculis July 30 latitude Observations Latitude of Cheyenne LATITUDE-OBSERVATIONS-Continued Level linations Mean at 24h Mean for 19h Meridian Micrometer Remarks Micrometer star Name of Star nights Normal Equations Number Half-sum Observations for Latitude.-Station October 14 October 16 Pegasi Piscium probable error REDUCTION Right Ascension Salt Lake chron SALT LAKE CITY SALT LAKE OBSERVATORY Springs chron T. D. Oct TABLES OF TIME-REDUCTIONS Tabulation of Stars TIME-REDUCTIONS AT RECEIVING-STATION-Continued UNIFORM TABLES Ursa Minoris UTAH TERRITORY wires Wyoming Territory ΔΤ ΙΟ Ο.ΟΙ
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.