 | Thomas Keith - 1811 - 388 σελίδες
...the sun's meridian altitude. f OR, Elevate the pole so many degrees above the horizon as are equal to the latitude of the place ; find the sun's place in the ecliptic, and bring it to that part of the brass meridian which is numbered from the equator towards the poles... | |
 | Adam Walker - 1812 - 92 σελίδες
...XIV. To find all those Places to which the Sun will be vertical on any given Day* •'•. Rule. — Find the sun's place in the ecliptic, bring it to the meridian, and mark the place with pencil ; then turn the globe, and those places which have the sun vertical at their... | |
 | John Lathrop - 1812 - 218 σελίδες
...be visible at that hour. RULE. Elevate the pole so many degrees above the horizon, as are equal to the latitude of the place ; find the sun's place in the ecliptic', bfinjj it to the brass meridian, and set the index rff the hour circle to twelve ; then, if the gjvrfrt... | |
 | Thomas Keith - 1819 - 380 σελίδες
...horizon after sun-setting. Rule. Elevate the pole so many degrees above the horizon as are equal to the latitude of the place; find the sun's place in the ecliptic, and bring it to the western part of the horizon, or to ten or twelve degrees below ; then look in the... | |
 | Sir Richard Phillips - 1821 - 256 σελίδες
...PROBLEM XIX. — To find the suns meridian altitude at any given place. Rule. — Elevate the globe for the latitude of the place. Find the sun's place in the ecliptic, and bring it to the brazen meridian : count the number of degrees contained on the meridian, between... | |
 | Thomas Keith - 1821 - 408 σελίδες
...hour. RULE. Elevate the pole so many degrees above the horizon as are equal to the latitude of die place ; find the sun's place in the ecliptic, bring it to the brass meridian, and set the index of the hour-circle to 12 ; then, if the given time be before noon,... | |
 | John Hubbard Wilkins - 1822 - 158 σελίδες
...the hour of sun-setting, and it will give the length of the day. 1. Rectify the globe (by Prob. XI.) for the latitude of the place ; find the sun's place in the eeliptic (by Prob. X.) and bring it to the meridian, and set the index to 12; bring the sun's place... | |
 | James M'Intire - 1823 - 232 σελίδες
...XXX. To find the time of the moon's southing, or coming to the meridian of anyplace, on any given day. RULE. Elevate the pole for the latitude of the place, find the moon's longitude and latitude, or her right ascension and declination, in the Nautical Almanac, for... | |
 | John Hubbard Wilkins - 1825 - 151 σελίδες
...the heavens at that time at the place ; and to point out the situations of the several stars. f.'r Elevate the pole for the latitude of the place ; find the sun's place in the ecliptic, and bring it to the meridian, and set the index to 12 ; if the time be afternoon, turn the globe westward... | |
 | John Vose - 1827 - 262 σελίδες
...nf year what hour the sun rises and sets ; also the length of the day and night. Rectify the globe for the latitude of the place. Find the sun's place...ecliptic, bring it to the meridian, and set the index at 12. Turn the globe eastward, till the sun's place comes to the edge of the horizon, the index will... | |
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Make the elevation of the pole equal to the latitude of the place ; find the sun's place in the ecliptic, bring it to the meridian, and set the index to 12. 
