| John Hamilton Moore - 1807 - 328 sider
...lat. or fee. lefs radius Is to radius, So is the fine of the fun or ftar's declination To the fine **of the true amplitude. Which is always of the fame name with the declination, whether north or** fouth. i EXAMPLE I. Suppofe the fun's declination to be 10° 43' S. in lat. 51° 32' N. I demand the... | |
| John Hamilton Moore - 1807 - 328 sider
...lat. or fee. lefs radius Is to radius, So is the fine of the fun or flar's declination To the fine **of the true amplitude. Which is always of the fame name with the declination, whether north or** fouth. • EXAMPLE I. Suppofe the fun's declination to be 10° 43' S. in lat. 51° 32' N. I demand... | |
| John Hamilton Moore - 1810 - 336 sider
...of the compass. Q. How do you find the true amplitude ? A. As the co-sine of the latitude: is to the **radius : : so is the sine of the sun or star's declination : to the sine of the true amplitude.** Or if the secant of the latitude be added to the sine of the sun or star's declination, the sum (rejecting... | |
| George Adams - 1813 - 534 sider
...setting, and from thence the variation of the magnetic needle, with an azimuth compass. As the co-sine **of the latitude is to radius, so is the sine of the** sun's declination at setting or rising to the sine of his amplitude from the W. or E. Next, calculate... | |
| James Mitchell - 1823 - 576 sider
...To fiml the sun's amplitude, having the latitude and the sun's declination given, Say, as the cosine **of the latitude is to radius, .so is the sine of the** sun's or star's declination to the sine of the amplitude. EXAH. Let it be required to find the amplitude... | |
| 1845
...From these data, calculate the greatest azimuth of the pole star by this formula : " As the cosine **of the latitude is to radius, so is the sine of the** north polar distance of the pole star to the sine of its azimuth." Ascertain the direction of this... | |
| W. Davis Haskoll - 1858 - 324 sider
...from the east or west by the needle. Now to find the sun-s true amplitude for that day. As the cosine **of the latitude^ is to radius, so is the sine of the** sun-s declination|| at setting or rising to the sine of his amplitude from the west or east, which... | |
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