 To find how many hours any star u above the horizon of any given place, or the length oj its diurnal arc at that place. Rule. — Elevate the pole for the latitude of the place; bring the star to the eastern edge of the horizon, and set the index to twelve...  A grammar of general geography, by J. Goldsmith - Page 145by sir Richard Phillips - 1834Full view - About this book
 | Thomas Keith - 1811 - 388 pages
...sun-set, and consequently when it begins to be visible in the evening. Turn the globe westward on its axis till the star comes to the western edge of the horizon, and observe what degree of the ecliptic is intersected by the the horizon, as before ; the day of the month... | |
 | John Lathrop - 1812 - 218 pages
...and consequently, when it begins to be visible in the evening. Turn the globe westward on its axis till the star comes to the western edge of the horizon, and observe what degree of the ecliptic is intersected by the horizon, as before ; the day of the month... | |
 | Thomas Keith - 1819 - 380 pages
...degree, »ill .-how the time when the star rises with the Run. Turn the globe westward on its axis till the star comes to the western edge of the horizon, and observe what sign and degree of the ecliptic are intersected by the eastern edge, as before ; these... | |
 | John Lathrop - 1821 - 206 pages
...hour circle to twelve ; turn the globe eastward till the given place comes to the eastern semi-circle of the horizon, and the number of hours passed over by the index will be the time of the sun's setting : deduct these hours from twelve, and you have the time of the... | |
 | James M'Intire - 1823 - 232 pages
...brass meridian, and set the index of the hour cire to 12; turn the globe westward till the sun's place comes to the "western edge of the horizon, and the number of hours passed over by the index will be the time of the sun's setting; with which proceed as above. Or, by the Analemma. Elevate the... | |
 | James M'Intire - 1826 - 234 pages
...meridian, and set the index of the hour circle to 1 2; turn the globe westward till the sun[s place come to the western edge of the horizon, and the number of hours passed over by the index will be the time of the sun's setting; with which proceed as above. Or, by the Analemma. Elevate the... | |
 | James Ryan - 1827 - 408 pages
...index of the hour circle to twelve ; then turn the globe westward on its axis till the sun's place comes to the western edge of the horizon, and the number of hours passed over by the index, will be the length of the day. And the length of the day taken from twenty-four hours, will give the... | |
 | Joseph Guy - 1832 - 412 pages
...; turn the globe westward till the day of the month on the analemma comes to the western semicircle of the horizon, and the number of hours passed over by the index will be the time of the sun's setting, &c. as above. EXAMPLES. 1. What time does the sun rise and set... | |
 | John Rorke - 1844 - 188 pages
...the east point of the horizon is its rising amplitude. Set 12 on the hour circle to the meridian, and turn the globe westward till the star comes to the western edge of the horizon, the hours passed over on the hour circle will be the diurnal arc, or the time the star continues above... | |
 | Joseph Guy - 1845 - 370 pages
...-, turn the globe westward till the day of the month on the analemma comes to the western semicircle of the horizon, and the number of hours passed over by the index will be the time of the sun's setting, &c. as above. EXAMPLES. 1. What time does the sun rise and set... | |
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