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 |
From inside the book
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 ...
... 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 ...
Page 28
... hour . Correction of chronometer . Rate per hour . 1872 . October 5 h . 22.50 h . m . S. --- 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 ང 21 24.00 33.725 + 0.069 SALT LAKE ...
... hour . Correction of chronometer . Rate per hour . 1872 . October 5 h . 22.50 h . m . S. --- 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 ང 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 . Adopted hourly rate . 1873- July 28 h . 17.433 -- h . m . ΙΟ S. 10.120 ± 0.020 S. S. + 0.064 29 19.067 11.7600.014 + 0.034 30 20.000 12.540 ± 0.020 + 0.048 31 17.975 13.596 ± 0.028 + 0.047 Aug. 2 16.583 4 19.733 15.745 0.020 18 ...
... hour . Adopted hourly rate . 1873- July 28 h . 17.433 -- h . m . ΙΟ S. 10.120 ± 0.020 S. S. + 0.064 29 19.067 11.7600.014 + 0.034 30 20.000 12.540 ± 0.020 + 0.048 31 17.975 13.596 ± 0.028 + 0.047 Aug. 2 16.583 4 19.733 15.745 0.020 18 ...
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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