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 |
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Results 1-5 of 14
Page 13
... micrometer- screw , o " .6216 ; of the striding - level A , 1 " .21 ; and of the zenith - level , 1 " .10 . ( b . ) Chronograph . The record of the observations for time , as well as the exchange of signals , with one exception ( the ...
... micrometer- screw , o " .6216 ; of the striding - level A , 1 " .21 ; and of the zenith - level , 1 " .10 . ( b . ) Chronograph . The record of the observations for time , as well as the exchange of signals , with one exception ( the ...
Page 15
... micrometer - screw , o " .622 ; of the striding - level A , 1 " .21 ; and of the zenith - level , 1 " .10 . The wire which made the circuit between the stations Salt Lake and Cheyenne , counting the distance along the railroad , is some ...
... micrometer - screw , o " .622 ; of the striding - level A , 1 " .21 ; and of the zenith - level , 1 " .10 . The wire which made the circuit between the stations Salt Lake and Cheyenne , counting the distance along the railroad , is some ...
Page 32
... Micrometer Date . Remarks . Date . star . reading . Ν . S. No. of Micrometer star . reading . Level . Remarks . Ν . S. 1872 . Oct. I т . D. 7101 27 34.5 15.0 39.0 1872 . Oct. I 8279 т . D. II 43.2 22.5 26.5 7114 5 45.5 30 late . 8296 23 ...
... Micrometer Date . Remarks . Date . star . reading . Ν . S. No. of Micrometer star . reading . Level . Remarks . Ν . S. 1872 . Oct. I т . D. 7101 27 34.5 15.0 39.0 1872 . Oct. I 8279 т . D. II 43.2 22.5 26.5 7114 5 45.5 30 late . 8296 23 ...
Page 33
... Micrometer star . reading . Level . Level . Remarks . Date . No of Micrometer star . reading . Remarks . Ν . S. N. S. 1872 . Oct. 3 7721 т . D. 1872 . т . D. 28 77.6 30.5 11.5 Oct. 8 6722 2 63.0 15.0 31.5 7731 28 98.0 6754 23 66.8 37.0 ...
... Micrometer star . reading . Level . Level . Remarks . Date . No of Micrometer star . reading . Remarks . Ν . S. N. S. 1872 . Oct. 3 7721 т . D. 1872 . т . D. 28 77.6 30.5 11.5 Oct. 8 6722 2 63.0 15.0 31.5 7731 28 98.0 6754 23 66.8 37.0 ...
Page 34
... Micrometer star . Remarks . Date . reading . No. of Micrometer star . reading . Remarks . N. S. Ν . S. 1872 . Oct. 8 т . D. 7972 17 34.9 32.0 22.0 1872 . Oct. 8 т . D. 572 25 8.6 19.0 35.0 7978 10 3.0 573 24 98.5 42.0 11.0 7984 22 13.5 ...
... Micrometer star . Remarks . Date . reading . No. of Micrometer star . reading . Remarks . N. S. Ν . S. 1872 . Oct. 8 т . D. 7972 17 34.9 32.0 22.0 1872 . Oct. 8 т . D. 572 25 8.6 19.0 35.0 7978 10 3.0 573 24 98.5 42.0 11.0 7984 22 13.5 ...
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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
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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.