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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Page 16
... 30m local sidereal time 2 10.39 Normal Equations . 9dt- 3.24 + 0.18c = -2.22 -3.24 dt + 22.91a - 10.29-3.72 0.18 dt- 10.29 a + 63.46c = + 0.60 a - 0.18 c = +0.07 δε -0.31 SALT LAKE OBSERVATORY , October 5 , 1872 . Name of Star . Clamp ...
... 30m local sidereal time 2 10.39 Normal Equations . 9dt- 3.24 + 0.18c = -2.22 -3.24 dt + 22.91a - 10.29-3.72 0.18 dt- 10.29 a + 63.46c = + 0.60 a - 0.18 c = +0.07 δε -0.31 SALT LAKE OBSERVATORY , October 5 , 1872 . Name of Star . Clamp ...
Page 17
... 30m local sidereal time . 2 22.93 Normal Equations . 11 dt 4.46a + 1.25 +1.73 a = 0.250 4.46 dt + 26.19 + 5.21c = - 7.89 1.25 t + 5.21 + 75.02 c = 8.35 c = 0.096 dt = +0.070 SALT LAKE OBSERVATORY , October 14 , 1872 . Name of Star ...
... 30m local sidereal time . 2 22.93 Normal Equations . 11 dt 4.46a + 1.25 +1.73 a = 0.250 4.46 dt + 26.19 + 5.21c = - 7.89 1.25 t + 5.21 + 75.02 c = 8.35 c = 0.096 dt = +0.070 SALT LAKE OBSERVATORY , October 14 , 1872 . Name of Star ...
Page 20
... 30 3.77 m . S. 2 31.65 35 6.83 31.77 47 41.78 45 10.12 31.66 0.00 0.28 + 0.05 48 29.99 45 58.46 31.53 0 Cephei . 23 Ο 57.20 15 56.85 Mean at 22h 30m local sidereal time 0.00 0.16 + 0.05 23 Ο 57.09 58 25.42 31.67 W. 0.00 +0.42 0.13 15 ...
... 30 3.77 m . S. 2 31.65 35 6.83 31.77 47 41.78 45 10.12 31.66 0.00 0.28 + 0.05 48 29.99 45 58.46 31.53 0 Cephei . 23 Ο 57.20 15 56.85 Mean at 22h 30m local sidereal time 0.00 0.16 + 0.05 23 Ο 57.09 58 25.42 31.67 W. 0.00 +0.42 0.13 15 ...
Page 21
... 30 58.20 35.39 ε Pegasi 40 25.25 0.08 + 6.13 0.07 40 31.23 37 55.86 35-37 II Cephei 42 56.94 0.18 -17.46 0.21 42 39.09 40 3.72 35-37 a Aquarii 22 I 42.61 0.07 +7.75 0.07 22 I 50.22 59 14.62 35.60 Mean at 21h 30m local sidereal time 2 ...
... 30 58.20 35.39 ε Pegasi 40 25.25 0.08 + 6.13 0.07 40 31.23 37 55.86 35-37 II Cephei 42 56.94 0.18 -17.46 0.21 42 39.09 40 3.72 35-37 a Aquarii 22 I 42.61 0.07 +7.75 0.07 22 I 50.22 59 14.62 35.60 Mean at 21h 30m local sidereal time 2 ...
Page 23
... 30m local sidereal time -1 52 43.03 Normal Equations . 8 dt + 3.99 - 7.40c = 6.38 3.99 δι + 22.89a + 23.740 = - 12.73 - 7.40 dt + 23.74 + 45.340 - 5.45 a = -0.91 c = +0.35 St = -0.02 CHEYENNE , WYOMING TERRITORY , October 14 , 1872 ...
... 30m local sidereal time -1 52 43.03 Normal Equations . 8 dt + 3.99 - 7.40c = 6.38 3.99 δι + 22.89a + 23.740 = - 12.73 - 7.40 dt + 23.74 + 45.340 - 5.45 a = -0.91 c = +0.35 St = -0.02 CHEYENNE , WYOMING TERRITORY , October 14 , 1872 ...
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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 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.