 SUBTRACT from the time of west elongation om. 16 for every degree north of 40°. Reverse these operations for correcting times of east elongation. E. To refer to any other than the tabular longitude: ADD om.  Text-book on Practical Astronomy - Page 185by George Leonard Hosmer - 1917 - 205 pagesFull view - About this book
 | U.S. Coast and Geodetic Survey - 1892 - 846 pages
...tabular day. The longitude correction will amount to O"1 -16 subtractive for each hour west of Gh. To refer to any other than the tabular latitude between the limits of 25° and 50° north, add to the time of west elongation O1" -13 for every degree south of 40°, and... | |
 | William Galt Raymond - Logarithms - 1896 - 524 pages
...llh 42.4'" + 2.9'" = Il1' 45.*". For 1912, before March 1, add 4.2'"; on and after March 1, add .8m. To refer to any other than the tabular latitude between the limits of 25° and 60° north, add to the time of west elongation 0.13'" for every degree south of latitude 40°,... | |
 | Mathematical geography - 1903 - 306 pages
...October 12. The lower culmination either follows or precedes the upper culmination by llh 58"'. l. D. To refer to any other than the tabular latitude between the limits of 25° and 50° north: ADD to the time of west elongation 0m.13 for every degree south of 40°, and SUBTRACT... | |
 | Geological Survey (U.S.) - Geology - 1903 - 338 pages
...October 12. The lower culmination either follows or pre-. cedes the upper culmination by 11" 58m.l. D. To refer to any other than the tabular latitude between the limits of So0 and 50° north: ADD to the time of west elongation Om.13 for every degree south of 40°, and SUBTRACT... | |
 | L.A. BAUER - 1903 - 442 pages
...on October 12. The lower culmination either follows or precedes the upper culmination by n" 58™.i. D. To refer to any other than the tabular latitude between the limits of 25° and 50° North: ADD to the time of west elongation o m .i3 for every degree south of 40° and... | |
 | Fred Lavis - Railroads - 1906 - 308 pages
...on October 12. The lower culmination either follows or precedes the upper culmination by llh s8m.l. D. To refer to any other than the tabular latitude between the limits of 25° and 50° North: ADD to the time of west. elongation om.i3 for everv degree south of 40° and SUBTRACT... | |
 | John Clayton Tracy - Surveying - 1907 - 838 pages
...on October 14. The lower culmination either follows or precedes the upper culmination by llh 58'".0. D. To refer to any other than the tabular latitude...and 50° north: ADD to the time of west elongation Om.10 for every degree south of 40° and SUBTRACT from the time of west elongation Ora.16 for every... | |
 | John Clayton Tracy - Surveying - 1907 - 854 pages
...place is west of the standard meridian and SUBTRACT when the place is east of the standard meridian. D. To refer to any other than the tabular latitude between the limits of 25° and 50° North: ADD to the time of WEST elongation 0M.12 for every degree south of 40° and SUBTRACT... | |
 | John Clayton Tracy - Surveying - 1907 - 844 pages
...upper culmination by llh S8m.O. D. To refer to any other than the tabular latitude belwmi the Units of 10° and 50° north: ADD to the time of west elongation 0"'.10 for every degree south of 40° and SUBTRACT from the time of west elongation Om.16 for every... | |
 | U.S. Coast and Geodetic Survey - Geomagnetism - 1909 - 132 pages
...October 14. The lower culmination either follows or precedes the upper culmination by i ih 58™. o. D. To refer to any other than the tabular latitude...and 50° north: ADD to the time of west elongation om. 10 for every degree south of 40° and SUBTRACT from the time of west elongation om. 16 for every... | |
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