 | Bernhardus Varenius - 1734 - 464 páginas
...Latitude of 'the place ', to find the Hour for that Altitude. ELEVATE the Pole for that Latitude, and find the Sun's Place in the Ecliptic, and bring it to the Meridian ; then fixing the Quadrant of Altitude at the Zenith, and the Index at 12, move the Globe... | |
 | 1763 - 1246 páginas
...for that i» the latitude required. ^. To rcflify the globs for any given place. Rail'e the pole fo many degrees above the horizon, as are equal to the latitude of the place j then, finding the fun's phce, bring it to the meridian ; and pro.-eed, as directed in problem i.... | |
 | Benjamin Martin - 1772 - 492 páginas
...the Place over which the Sun is vertical on any given Day and Hour. - In order to this, you are to find the Sun's Place in the Ecliptic, and bring it to the Meridian, and mark the Degree of Declination for the given Hour. After this, find thofe Places which... | |
 | James Ferguson - 1776 - 546 páginas
...is vertical at the given hour, if the place be in the northern hemifphere, elevate the north pole as many degrees above the horizon, as are equal to the latitude of that place •, if the place be in the fouthern hemifphere, elevate the fouth pole accordingly j and... | |
 | Thomas Hogg - 1806 - 130 páginas
...the suns rising and setting, to any amplitude not exceeding 664-°. Rectify the globe for the given place ; find the sun's place in the ecliptic, and bring it to tha meridian ; set the index of the horary circle to XII ; then bring the sun's place to the east side... | |
 | J. Goldsmith - 1811 - 184 páginas
...point out all the constellations, and principal stars, there visible. Rule. — Elevate the globe to so many degrees above the horizon, as are equal to the latitude of the place, and set the globe due north and south : find the sun's place in the ecliptic, bring it to the brazen... | |
 | John Lathrop - 1812 - 218 páginas
...declination for the given day, and note whether it be north or south ; if it be north, elevate the south pole so many degrees above the horizon as are equal to the declination ; if it be south, elevate the north pole in a similar manner; bring the place at which... | |
 | Eliza Roberts - 1813 - 408 páginas
...Find the place where the Sun is vertical at the given hour, by Problem XIV ; then elevate the Pole as many degrees above the horizon as are equal to the latitude of that place, and bring to the brass meridian ; so will it then be the zenith or centre of the horizon.... | |
 | Thomas Keith - 1819 - 380 páginas
...declination for the given day, and note whether it be north or south ; if it be north, elevate the south pole so many degrees above the horizon as are equal to the declination; if it be south, elevate the north pole in a similar manner: bring the place at which the... | |
 | Thomas Keith - 1821 - 408 páginas
...month, and hour of the night or morning, to Jind what planets i»itt be visible at that 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... | |
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... the western edge of the horizon, and the index will show the time of... 
