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 25
Page 8
... level , and collimation corrections . A , B , C , azimuth , level , and collimation factors . Tobserved time reduced to the mean of wires and corrected for rate . T'observed time corrected for instrumental errors . AR . apparent right ...
... level , and collimation corrections . A , B , C , azimuth , level , and collimation factors . Tobserved time reduced to the mean of wires and corrected for rate . T'observed time corrected for instrumental errors . AR . apparent right ...
Page 11
... level ; northward , however , there is a gradual swell of the land , and within a few miles it cuts off the extensive view one is accustomed to on the great plains . Eastward and southward there is the usual rolling and slightly ...
... level ; northward , however , there is a gradual swell of the land , and within a few miles it cuts off the extensive view one is accustomed to on the great plains . Eastward and southward there is the usual rolling and slightly ...
Page 13
... 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 night of the 14th ) , was made by means of the ...
... 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 night of the 14th ) , was made by means of the ...
Page 15
... level A , 1 " .21 ; and of the zenith - level , I " . 10. The wire which made the circuit between the stations Salt Lake and Cheyenne , counting the distance along the railroad , is some 550 miles , and does not include any battery or ...
... level A , 1 " .21 ; and of the zenith - level , I " . 10. The wire which made the circuit between the stations Salt Lake and Cheyenne , counting the distance along the railroad , is some 550 miles , and does not include any battery or ...
Page 32
... Level . Level . No. of Micrometer Remarks . Date . star . reading . No , of Micrometer star . reading . Remarks . N. S. N. S. 1872 . T. D. 1872 . T. D. Oct. I 7101 27 34.5 15.0 39.0 Oct. I 8279 II 43.2 22.5 26.5 7114 5 45.5 30 late ...
... Level . Level . No. of Micrometer Remarks . Date . star . reading . No , of Micrometer star . reading . Remarks . N. S. N. S. 1872 . T. D. 1872 . T. D. Oct. I 7101 27 34.5 15.0 39.0 Oct. I 8279 II 43.2 22.5 26.5 7114 5 45.5 30 late ...
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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.