 | Bernhardus Varenius - 1734 - Liczba stron: 464
...Complement of Latitude, and of the Complement of Altitude, add the Logarithm Sines of the half Sum, and remainder half, the Total of thefe four Logarithms, is the Sine Complement of half the Azimuth. Note. If the Sun's Declination be South, and the Latitude North, or... | |
 | Henry Wilson - 1761 - Liczba stron: 580
...Complement Arithmetical of the Log-Shies of tile containing Sides, add the Log-Sines of that half Sum and Remainder, half the Total of thefe four Logarithms is the Sine Complement of half the Angle required. Thefe Directions well underftood, being fufficient to folve... | |
 | James Atkinson - 1770 - Liczba stron: 514
...of the Latitude, and the Sun's J5iftance frpm.the Pole, add the Sines of the faicj half Sum, and the Remainder ; half the Total of thefe four Logarithms, is the Sine of the Supplement of Half the Hour from Noon, all which is fljortened thus j j. To find the Azimuth, the Operation is ; S. co. ar.... | |
 | John Hamilton Moore - 1791 - Liczba stron: 578
...Logarithms will give the Co-fine of half the true Azimuth, which being doubled is the true Azimuth, reckoned from the North in North Latitude,' and from the South in South Latitude. ' Or it may be found thus : To the Log. Secants of the Latitude and Altitude, add the Log. Sines of... | |
 | John Hamilton Moore - 1810 - Liczba stron: 662
...give the log.co-sirfe of half the true azimuth, which being doubled, gires the true azimuth, reckoned from the north in north latitude, and from the south in south latitude. NB The polar distance of the sun or star, is their distance from the nearest, or elevated pole : and... | |
 | Nathaniel Bowditch - 1826 - Liczba stron: 732
...line of the stop, will be the magnetic azimuth of the sun at that time, which is generally reckoned from the north in north latitude, and from the south in south latitude.§ At l'le tml(' of making this observation, you must, also observe the altitude of the sun, in order... | |
 | John William Norie - 1836 - Liczba stron: 510
...exceeds 90°, it is to be taken from 180°, and reckoned from the opposite point of the horizon, that is, from the North in North latitude, and from the South in South latitude. Thus, having the time of the star's transit, or passage over the meridian, bj the table, and its meridian... | |
 | John William Norie - 1840 - Liczba stron: 184
...90°, it is to be taken from 180°, F and reckoned from the opposite point of the horizon, that is, from the north in north latitude, and from the south in south latitude. Thus having the time of the star's transit, or passage over the meridian, by the Table, and its meridian... | |
 | Thomas Lynn - 1843 - Liczba stron: 230
...of half the true azimuth, which doubled gives the true azimuth accordingly ; to be always reckoned from the north in north latitude, and from the south in south latitude. Example.— Sept. 25th, 1844, latitude 15° 17' N. ; longitude 82Э Е. ; the sun's true altitude is... | |
 | Nathaniel Bowditch - 1846 - Liczba stron: 854
...line of the stop, will he the magnetic azimuth of the sun at that time, which is generally reckoned from the north in north latitude, and from the south in south latitude. § At the time of making this observation, you must also observe the altitude of the sun, in order... | |
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... or taking their difference when of contrary names ; the altitude to be reckoned from the south point of the horizon, when the latitude is north, and the contrary when south ; but when the sum exceeds 90°, it is to be taken from 180°, F and reckoned... 
