 | Jacob Willetts - Geography - 1831 - 220 pages
...Elevate the pole equal to the latitude of the place ; find the sun's place in the ecliptic and: bring it to the brass meridian, and set the index of the hour circle to 12 ; bring the star to the eastern edge of the horizon and the index shows the time of the rising : bring... | |
 | Joseph Guy - Astronomy - 1832 - 412 pages
...the sun's declination for the given day, and elevate the pole to that declination ; bring the given place to the brass meridian, and set the index of the hour circle to twelve : turn the globe eastward on its axis till the given place comes to the horizon, and observe... | |
 | Jesse Olney - Geography - 1833 - 300 pages
...Rectify the globe for the latitude of the place, find the sun's place in the ecliptic and bring it tp the brass meridian, and set the index of the hour circle to 12. Turn the globe westward till the sun's place comes to the horizon, and the index will show the time of the sun's setting;... | |
 | Hervey Wilbur - Astronomy - 1834 - 172 pages
...latitude, then under the same degree of latitude, in the opposite hemisphere you will find the Anteci. Set the index of the hour circle to 12, turn the globe half round, or until the index points to the other 12 ; then under that degree on the brass meridian, which is the... | |
 | Jesse Olney - Geography - 1835 - 298 pages
...or south so many degrees above the horizon, as are equal to the sun's declination ; bring the given place to the brass meridian, and set the index of the hour circle to 12. Turn the globe eastward till the given place comes to the horizon, and the index will shew the time of the sun's rising.... | |
 | Jesse Olney - Geography - 1836 - 294 pages
...or south so many degrees above the horizon, as are equal to the sun's declination ; bring the given place to the brass meridian, and set the index of the hour circle to 12. Turn the globe eastward till the given place comes to the horizon, and the index will shew the time of the sun's rising.... | |
 | T H. Howe - 1842 - 458 pages
...in K, on p. 16, and on the page succeeding. RULE 1. — Bring the place, the time of which is given, to the brass meridian, and set the index of the hour circle to the time ; then bring the other place to the brass meridian, and the index will point out the time... | |
 | Thomas Lynn - 1843 - 230 pages
...39. culminates at Ih. 2m. PM;* now turn the globe until this star comes under the graduated edge of the brass meridian, and set the index of the hour circle to Ih. 2m., and the globe with its pole pointing to the pole of the world, by means of the mariner's compass,... | |
 | Joseph Guy - Astronomy - 1845 - 370 pages
...the sun's declination must vary to make the day an hour longer or shorter than the given day. given place to the brass meridian, and set the index of the hour circle to twelve : turn the globe eastward on its axis till the given place comes to the horizon, and observe... | |
 | Thomas Keith - 1848 - 486 pages
...after the sun. When Venus is a morning star. Bring the sun's place to the eastern edge of the horizon, and set the index of the hour circle to 12 ; turn the globe eastward on its axis till Venus comes to the eastern edge of the horizon, and the hours passed over... | |
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Find the sun's declination and elevate the north or south pole, according as the declination is north or south so many degrees above the horizon, as are equal to the sun's declination ; bring the given place to the brass meridian, and set the index of... 
