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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Results 1-3 of 3
Page 78
... pairs of stars , which have to be observed on five different nights . But the observer is dependent upon the weather , and is frequently disappointed , although after waiting I preferred to select a greater number of pairs , believing ...
... pairs of stars , which have to be observed on five different nights . But the observer is dependent upon the weather , and is frequently disappointed , although after waiting I preferred to select a greater number of pairs , believing ...
Page 79
... stars are observed every night under the same conditions , I should prefer to determine the probable error of ... pairs used at the station Number of observations then probable error of the final result , Ep = ε = m = n 2 == + m n ...
... stars are observed every night under the same conditions , I should prefer to determine the probable error of ... pairs used at the station Number of observations then probable error of the final result , Ep = ε = m = n 2 == + m n ...
Page 81
... pairs of observations upon 35 separate and distinct pairs of stars , each pair of which observations shall give a first - class result . These instructions are furnished to the observers with a view to their clearly understanding the ...
... pairs of observations upon 35 separate and distinct pairs of stars , each pair of which observations shall give a first - class result . These instructions are furnished to the observers with a view to their clearly understanding the ...
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Common terms and phrases
¹ Lyræ 12-Year Cat 24h local sidereal 30 late 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 instrument July 28 July 30 Latitude of Cheyenne LATITUDE-OBSERVATIONS-Continued Level linations longitude Mean at 24h Mean for 19h Meridian Micrometer Name of Star nights Normal Equations Number Half-sum O.II Observations for Latitude.-Station October 14 October 18 pairs of stars Pegasi personal equation probable error REDUCTION Right Ascension Salt Lake chron SALT LAKE CITY SALT LAKE OBSERVATORY Springs chron SURVEYS WEST 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