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" Rectify the globe for the latitude of the place. Find the sun's place in the ecliptic, and bring it to the brass meridian ; the number of degrees on the meridian between the horizon and the sun's place is the altitude required. "
A New Treatise on the Use of the Globes, Or, A Philosophical View of the ... - 222. oldal
szerző: Thomas Keith - 1811 - 346 oldal
Teljes nézet - Információ erről a könyvről

A Compleat System of General Geography: Explaining the Nature and Properties ...

Bernhardus Varenius - 1734 - 898 oldal
...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...

The Young Gentleman and Lady's Philosophy,: In a Continued Survey of the ...

Benjamin Martin - 1772
...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...

A Compendious Treatise on the Use of the Globes, and of Maps: Compiled from ...

John Lathrop - 1812 - 183 oldal
...XL. Given the sun's meridian altitude, and the day of the month, to find the latitude of the place. RULE. 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 ; then, if the...

Elements of Plane and Spherical Trigonometry: With Their Applications to ...

Olinthus Gregory - 1816 - 244 oldal
...Multiplied by 2 The prod. - 10, sin error 6' S3" 16'". . 7-2801862 Example III. To rind when that part of the equation of time which depends on the obliquity of the ecliptic, is the greatest possible. . Here the sun's longitude will form the hypothenuse of a right angled spherical...

A New Treatise on the Use of the Globes: Or, A Philosophical View of the ...

Thomas Keith - 1819 - 352 oldal
...XLVII. Given the sun's meridian altitude, and the day of the month, to find the latitude of the place. Rule. 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; then, if the...

A New Treatise on the Use of the Globes; Or, A Philosophical View of the ...

Thomas Keith - 1821
...What is the breadth of the climate in which Mount Heckla is situated ? i. PROBLEM XL. Tojlnd that part of the equation of time which depends on the obliquity...ecliptic. RULE. Find the sun's place in the ecliptic, and bringit to the brass meridian ; count the number of degrees from Aries to the brass meridian, on the...

A Grammar of General Geography: For the Use of Schools and Young Persons ...

Sir Richard Phillips - 1821 - 192 oldal
...on that day. Observe, The declination of the sun is its distance from the equator, north or south. Rule. — Find the sun's place in the ecliptic, and bring it to the meridian, and the degree which stands over it is the sun's declination. Then turn the globe from west...

Elements of Astronomy: For the Use of Schools and Academies : with Questions

John Hubbard Wilkins - 1822 - 116 oldal
...and to point out the situations of the several stars. 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 ; if in the forenoon,...

A New Treatise on the Use of the Globes: With Notes and Observations ...

James MʻIntire - 1823 - 220 oldal
...upon the obliquity of the ecliptic.* Bring the sun's place in the ecliptic to the brass meridian, then count the number of degrees from Aries to the brass...meridian, 'on the equator and on the ecliptic; the difference reduced to time, counting four minutes of time to a degree, will be the equation of time....

Elements of Astronomy: Illustrated with Plates, for the Use of Schools and ...

John Hubbard Wilkins - 1825 - 151 oldal
...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 ; if in the forenoon,...




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