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" ... will be the right ascension of the meridian. From the right ascension of the meridian (increased by 24 hours if necessary) subtract the sun's right ascension... "
Lunar and Horary Tables, for New and Concise Methods of Performing the ... - Seite 5
von David Thomson - 1831 - 20 Seiten
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The Theory and Practice of Finding the Longitude at Sea Or Land: To ..., Band 1

Andrew Mackay - 1809 - 412 Seiten
...ascension, according as it was observed in the western or eastern hemisphere, the sum or remainder will be the right ascension of the meridian. From...if necessary, subtract the Sun's right ascension, as given in the Nautical Almanac, for the noon of the proposed day ; the remainder will be the approximate...
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New American Practical Navigator

1821 - 708 Seiten
...when the star is east of the meridian, or adding; when west of the meridian, the sum or difference will be the right ascension of the meridian. From...ascension of the meridian (increased by 24 hours if neces* The right ascensions and declinations of the rtara in Table V11I. are the mean values forJanif«ry...
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The New American Practical Navigator: Being an Epitome of Navigation ...

Nathaniel Bowditch - 1826 - 764 Seiten
...when the star is east of the meridian, or adding when west of the. meridian, the sum or difference will be the right ascension of the meridian. From...hours if necessary) subtract the sun's right ascension at noon at Greenwich, taken from • The right ascensions and declination« of the stare in Table VIII....
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The New American Practical Navigator: Being an Epitome of Navigation ...

Nathaniel Bowditch - 1826 - 732 Seiten
...adding when west of the meridian, the sum or difleronce will be the right ascension of the meridiafl. From the right ascension of the meridian (increased...hours if necessary) subtract the sun's right ascension at noon at Greenwich, taken from XLIU ; but in general these corrections may he neglected. These correction»...
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Mathematical and Astronomical Tables: For the Use of Students in Mathematics ...

William Galbraith - 1834 - 454 Seiten
...the time of observation it is west of the meridian, but subtract it if east, and the sum or remainder will be the right ascension of the meridian. From...if necessary, subtract the sun's right ascension, reduced to the time of observation, and the remainder will be the apparent time. If to this time the...
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A complete set of nautical tables

John William Norie - 1836 - 510 Seiten
...if the star be to the eastward, the sum or remainder will be the right ascension of the meridian. 6. From the right ascension of the meridian, increased by 24 hours if necessary, subtract the sun's reduced right ascension ; and the remainder will be the apparent time of observation at the meridian...
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The New American Practical Navigator; Being an Epitome of Navigation ...

Nathaniel Bowditch - 1846 - 854 Seiten
...when the moon is cast of the meridian, or adding when west of the meridian ; the sum or difference will be the right ascension of the meridian. From the right ascension of the meridian (increased by 34 hours if necessary) subtract the sun's right ascension ; the remainder will be the apparent time...
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Proceedings of the American Association for the Advancement of Science, Band 8

American Association for the Advancement of Science - 1855 - 396 Seiten
...difference between the hour-angle and the star's RA, when it is east of it ; the sum or difference will be the right ascension of the meridian. From...(increased by 24 hours if necessary) subtract the sun's rig/it ascension, the remainder will be the apparent time. Example II. In latitude 35° N., when the...
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Lunar and Time Tables ...

James Gordon (Teacher of Navigation.) - 1849 - 260 Seiten
...subtract the meridian distance of the star, the remainder is the right ascension of the meridian ; and, if from the right ascension of the meridian, (increased by 24 hours, if necessary) we subtract the sun's right ascension, the remainder is the distance of the sun to the westward of...
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Lunar and time tables, adapted to new methods for finding the longitude by ...

James Gordon (teacher of navigation.) - 1849 - 218 Seiten
...subtract the meridian distance of the star, the remainder is the right ascension of the meridian ; and, if from the right ascension of the meridian, (increased by 24 hours, if necessary) we subtract the sun's right ascension, the remainder is the distance of the sun to the westward of...
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