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 3
... latitude observations 31-44 Mean places of stars used for determination of latitude 31 Observations for latitude 32-38 Computations for latitude 39-44 Resulting astronomical co - ordinates 45 Colorado Springs station , Colorado ...
... latitude observations 31-44 Mean places of stars used for determination of latitude 31 Observations for latitude 32-38 Computations for latitude 39-44 Resulting astronomical co - ordinates 45 Colorado Springs station , Colorado ...
Page 7
... Latitude by Zenith Telescope , ( Talcott's method . ) 1. Geographical position of station . 2. Physical - geography ... observations . 8. Instrumental values ; circumstances of telegraphic communication , i . e . , length of ...
... Latitude by Zenith Telescope , ( Talcott's method . ) 1. Geographical position of station . 2. Physical - geography ... observations . 8. Instrumental values ; circumstances of telegraphic communication , i . e . , length of ...
Page 11
... latitude of which is N. 41 ° 7 ′ 46 ′′ .62 , and its longi- tude 28m 19.44 east of the Mormon observatory at Salt ... observations . In the early morning it would become cold enough to form ice , making it sufficiently ...
... latitude of which is N. 41 ° 7 ′ 46 ′′ .62 , and its longi- tude 28m 19.44 east of the Mormon observatory at Salt ... observations . In the early morning it would become cold enough to form ice , making it sufficiently ...
Page 14
... observing at Salt Lake , while the observations at Cheyenne were made by myself , and also the longitude reductions for both stations . Prof. W. A. Rogers , of Harvard College Observatory , computed the latitude - observations , and ...
... observing at Salt Lake , while the observations at Cheyenne were made by myself , and also the longitude reductions for both stations . Prof. W. A. Rogers , of Harvard College Observatory , computed the latitude - observations , and ...
Page 30
... observations together ; the one at Salt Lake in September , 1872 , the other at the Naval Observatory , May , 1873 . In Salt Lake we used different instruments on the same stars , in Washington the ... LATITUDE OBSERVATIONS . Mean 30.
... observations together ; the one at Salt Lake in September , 1872 , the other at the Naval Observatory , May , 1873 . In Salt Lake we used different instruments on the same stars , in Washington the ... LATITUDE OBSERVATIONS . Mean 30.
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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
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.