| Thomas Keith - 1819 - 380 pages
...she is an evening star; if to the left hand, she is a morning star. When Venus is an evening star. Bring the sun's place to the western edge of the horizon, and set the index of the hour circle to 12 ; turn the globe westward on its axis till Venus coincides with... | |
| Edward Bruce (bookseller.) - 1821 - 418 pages
...declination, brought the given place to the meridian, and set the index to 12 as before,—bring the given place to the western edge of the horizon, and the index will show the time of the sun's rising; bring it to the eastern edge, and the index will show the time of setting. By this... | |
| Sir Richard Phillips - 1821 - 256 pages
...place to the eastern edge of the horizon, and the index will point to the hour of rising; then bring it to the western edge of the horizon, and the index will show the time of setting. Ex. — Thus, on the 16th of March the sun rises at a Ym\e after six in thu morning, and set?... | |
| John Hubbard Wilkins - 1822 - 158 pages
...sun's place to the eastern edge of the horizon, and the index will show the hour of rising; bring it to the western edge of the horizon, and the index will show the hour of setting. 1. What time does the sun rise and set at N. York, on the 10 of May,and what is the... | |
| James M'Intire - 1823 - 232 pages
...over by the index will show how long Venus rises before the sun; but, if Venus be an evening star, bring the sun's place to the western edge of the horizon, and set the index to 12; turn the globe westward on its axis till the place of Venus on the globe, comes... | |
| S. Treeby - 1826 - 244 pages
...by Problem IX. ber of degrees on the inner circle, counting from the east, is his rising amplitude : bring the sun's place to the western. edge of the horizon, and the number of degrees on the inner circle, counting from the west, is his setting amplitude. Nvle.. —... | |
| James Ryan - 1827 - 408 pages
...she is an evening star ; if to the left hand, she is a morning star. When Venus is an evening star. Bring the sun's place to the western edge of the horizon, and set the index of the hour circle to 12 ; turn the globe westward on its axis till Venus coincides with... | |
| John Hubbard Wilkins - 1829 - 202 pages
...sun's place to the eastern edge of the horizon, and the index will show the hour of rising ; bring it to the western edge of the horizon, and the index will show the hour of setting. 2. Double the time of sun-rising, and it will give the length of the night ; double... | |
| Daniel Adams - 1830 - 370 pages
...to the eastern edge of the horizon, and the index will point to the hour of rising ; then bring it to the western edge of the horizon, and the index will show the setting. Thus on the 16th of March at Boston, the sunrises a little aftei six, and sets a little before... | |
| L. Ring - 1831 - 200 pages
...to the eastern edge of the horizon, and the index will point to the hour of rising ; then bring it to the western edge of the horizon and the index will show the time of setting. Examples. Thus on the 12th of November the sun rises at half past seven o'clock in the morning,... | |
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