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 5
Page 12
... 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 that the best time of the year ...
... 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 that the best time of the year ...
Page 13
... hour , was obliging enough to supply his place gratuitously . Mr. F. R. Simonton was my assistant here , and kept ... hours . The regulation of the movement is effected by a steel spring , with movable balances , strik- ing on a fly ...
... hour , was obliging enough to supply his place gratuitously . Mr. F. R. Simonton was my assistant here , and kept ... hours . The regulation of the movement is effected by a steel spring , with movable balances , strik- ing on a fly ...
Page 28
... hour . Correction of chronometer . Rate per hour . 1872 . h . h . m . S. October 5 22.50 - I 52 55.725 14 23.50 43.130 + 0.058 16 23.00 40.725 + 0.051 18 23.00 37.800 + 0.061 19 23.25 37.085 + 0.030 21 24.00 33.725 + 0.069 SALT LAKE ...
... hour . Correction of chronometer . Rate per hour . 1872 . h . h . m . S. October 5 22.50 - I 52 55.725 14 23.50 43.130 + 0.058 16 23.00 40.725 + 0.051 18 23.00 37.800 + 0.061 19 23.25 37.085 + 0.030 21 24.00 33.725 + 0.069 SALT LAKE ...
Page 50
... hours before and three hours after the given time ; also the estimated force of wind for the same time . The last column gives the general appearance of the sky , and needs no further explanation . It shows under what particularly ...
... hours before and three hours after the given time ; also the estimated force of wind for the same time . The last column gives the general appearance of the sky , and needs no further explanation . It shows under what particularly ...
Page 65
... hour . Correction of chronometer . Adopted hourly rate . 1873 . July 28 h . 17.433 h . m . O ΙΟ S. 10.120 ± 0.020 6 . S. + 0.064 29 19.067 30 20.000 31 17.975 11.760 ± 0.014 12.540 ± 0.020 13.596 ± 0.028 + 0.034 + 0.048 + 0.047 Aug. 2 ...
... hour . Correction of chronometer . Adopted hourly rate . 1873 . July 28 h . 17.433 h . m . O ΙΟ S. 10.120 ± 0.020 6 . S. + 0.064 29 19.067 30 20.000 31 17.975 11.760 ± 0.014 12.540 ± 0.020 13.596 ± 0.028 + 0.034 + 0.048 + 0.047 Aug. 2 ...
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.