Report Upon the Determination of the Astronomical Coordinates 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 MeridianU.S. Government Printing Office, 1874 - 82 pages |
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Page 50
... it . There was an opening in the tent for the meridian - line ; this was closed , when necessary , by a fly . During heavy winds the tent was in danger of being blown away , and 50 Meteorological conditions Description of observatory.
... it . There was an opening in the tent for the meridian - line ; this was closed , when necessary , by a fly . During heavy winds the tent was in danger of being blown away , and 50 Meteorological conditions Description of observatory.
Page 51
... necessary to nail the fly to the framework , while the tent itself was fastened to the stakes by strong iron wires . The entrance to the tent was from the west side , and was closed by ropes . In the northwest corner of the observatory ...
... necessary to nail the fly to the framework , while the tent itself was fastened to the stakes by strong iron wires . The entrance to the tent was from the west side , and was closed by ropes . In the northwest corner of the observatory ...
Page 80
... necessary arrangements for the observations and exchange of signals , will , from this time on , exchange signals each night that shall be fair at the two stations , unless unavoidable difficulties arise to prevent . It will be ...
... necessary arrangements for the observations and exchange of signals , will , from this time on , exchange signals each night that shall be fair at the two stations , unless unavoidable difficulties arise to prevent . It will be ...
Page 81
... necessary that there should be an exchange of the approximate results . Each observer will therefore send to the other , upon each subsequent night or as soon thereafter as practicable , the approximate error of his chronometer and the ...
... necessary that there should be an exchange of the approximate results . Each observer will therefore send to the other , upon each subsequent night or as soon thereafter as practicable , the approximate error of his chronometer and the ...
Page 82
... and the records and journal will be so kept as to comprise all the data necessary for the full expression of results in accordance therewith . Official : GEO . M. WHEELER , First Lieutenant Corps of Engineers , in charge .
... and the records and journal will be so kept as to comprise all the data necessary for the full expression of results in accordance therewith . Official : GEO . M. WHEELER , First Lieutenant Corps of Engineers , in charge .
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Common terms and phrases
12-Year Cat 21h local sidereal 30m local sidereal 50 Draconis 61 Cygni 9 Draconis Aquarii August bB aA cC Capricorni Cassiopeiæ Ceti Cheyenne chron chronograph chronom circuit Clamp Cloudy all day Colo Colorado Springs chronometer COLORADO TERRITORY Computations for Latitude Correction of chronometer Delphini eter final result Groom Groombridge 3241 Groombridge 4163 Half-sum of dec Herculis instrument July 28 July 30 Latitude of Cheyenne LATITUDE-OBSERVATIONS-Continued Level linations longitude Mean at 24h Mean for 17h Micrometer star Name of Star nights Normal Equations Number Half-sum O.II Observations for Latitude.-Station October 14 October 19 Pegasi personal equation Piscium probable error REDUCTION Remarks Right Ascension Sagittarii Salt Lake chron SALT LAKE CITY SALT LAKE OBSERVATORY Springs chron ß Lyræ 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