| James Inman - Nautical astronomy - 1849 - 280 pages
...this astronomically, and add it (except for the sun) to the right ascension of mean sun. From the sum **(increased if necessary by 24 hours) subtract the right ascension of the** body : the remainder (diminished by 24 hours if greater than 24 hours) will be the hour angle of the.... | |
| James Inman - 1849 - 399 pages
...is particularly useful in turning sidereal time into mean solar time as follows. From sidereal time, **increased if necessary by 24 hours, subtract the right ascension of the** sun at the preceding apparent noon. The remainder will be the interval between apparent noon and the... | |
| H. W. Jeans - Transportation - 1853 - 279 pages
...at bottom when east. To the hour angle thus fouiiu add the star's right ascension, and from the sum **(increased if necessary by 24 hours) subtract the right ascension of the mean sun ; the** result (rejecting 24 hours if great eithan 24 hours) will be ship mean time. Then proceed as in p.... | |
| Henry William Jeans - Nautical astronomy - 1858
...at bottom when east. To the hour angle thus found add the star's right ascension, and from the sum **(increased if necessary by 24 hours) subtract the right ascension of the mean sun ; the** result (rejecting 24 hours if greater than 24 hours) will be ship mean time. Then proceed as in p.... | |
| Henry William Jeans - Nautical astronomy - 1859
...west of meridian to take the angle from the top, and when east, from the bottom), and from the result **subtract the right ascension of the mean sun ; the remainder will be** ship mean time required" (adding or rejecting 24 hours, if necessary). EXAMPLES FOB PRACTICE. 53. Given... | |
| F. Labrosse - Azimuth - 1868 - 153 pages
..."* 3rd. Add together the Mean Time at Ship and the corrected 4 n ¿-t Sidereal Time ; from the sum, **increased if necessary by 24 , ' hours, subtract the right ascension of the** star ; the re- HÔûr^nsrie "ег •* mainder will be the star's hour angle West of the meridian.... | |
| Henry William Jeans - 1868
...west of meridian to take the angle from the top, and when east, from the bottom), and from the result **subtract the right ascension of the mean sun; the remainder will be** ship mean time required (adding or rejecting 24 hours, if necessary)." EXAMPLES FOR PRACTICE. 91. Given... | |
| 1870
...find mean time at slap. To the hour-angle thus found add the star's right ascension, and from the sum, **increased if necessary by 24 hours, subtract the right ascension of the mean sun ; the remainder** is mean time at the place at the instant of observation. 9. To find the longitude. Under ship mean... | |
| James Williams Inman - 1870
...is particularly useful in turning sidereal time into mean solar time as follows. From sidereal time, **increased if necessary by 24 hours, subtract the right ascension of the** sun at the preceding apparent noon. The remainder will be the interval between apparent noon and the... | |
| James Williams Inman - 1872
...this astronomically, and add it (except for the sun) to the right ascension of mean sun. From the sum **(increased if necessary by 24 hours) subtract the right ascension of the** body : the remainder (diminished by 24 hours if greater than 24 hours) will be the hour angle of the... | |
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