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" ... the sun sets. The longest night and shortest day, therefore, become equal respectively to the longest day and shortest night, as before found. It will be perceived from what is above shown, that when the latitude and declination are both north or... "
An Elementary Treatise on the Application of Trigonomentry to Orthographic ... - الصفحة 56
بواسطة John Farrar - 1833 - عدد الصفحات: 155
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Epitome of the Art of Navigation; Or, a Short, Easy, and Methodical Way to ...

James Atkinson - 1765 - عدد الصفحات: 504
...Find the Sun's Right Afcenfion by Problem 3. and the Afcenfional Difference by Problem 4. Then, 2. When the Latitude and Declination are both North, or both South, the Afcenfional Difference added to, and fubtracted from the Sun's Right Afcenfion, the firft is the Oblique...

Epitome of the Art of Navigation: Or, A Short, Easy and Methodical Way to ...

James Atkinson - 1770 - عدد الصفحات: 514
...added to, and fubtra&ed from 6 Hours, the one is Sun-rifing, and the other .is Sun-fetting. Note ; When the Latitude and Declination are both North or both South, the S un rifeth before, and fets after Six. But if one be North, and the other South, he then rifcth after,...

The Mariner's Compass Rectified: Containing Tables, Shewing the True Hour of ...

Andrew Wakely - 1780 - عدد الصفحات: 350
...added to, and fubftra&ed from 6 Hours, the one is Sunrifing, and the other Sun-fetting. Nate 2. If the Latitude and Declination are both North or both South, the Sun rifeth before, and fets after Six of the Clock ; but if one be North, and the other South, the contrary....

An Elementary Treatise on the Application of Trigonometry: To Orthographic ...

John Farrar - 1822 - عدد الصفحات: 270
...shortest day, therefore, become equal respectively to the longest day and shortest night, as before found. It will be perceived from what is above shown, that...greatest declination north and south, and that m© measures the time from midnight to sunrise, or half the night, and r0 the time from sunrise to noon,...

An Elementary Treatise on the Application of Trigonometry to Orthographic ...

John Farrar - 1822 - عدد الصفحات: 244
...shortest day, therefore, become equal respectively to the longest day and shortest night, as before found. It will be perceived from what is above shown, that...rises after and sets before 6. 89. We have seen that um and rs represent the apparent path of the sun, when at its greatest declination north and south,...

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

John Hubbard Wilkins - 1822 - عدد الصفحات: 158
...there are others which may be practised if necessaiy. It may be useful to subjoin the following rule. When the latitude and declination are both north or both south, the declination must be subtracted from the sun's meridian altitude ; but if one be north and tht other...

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

John Hubbard Wilkins - 1832 - عدد الصفحات: 196
...there are others which may be practised if necessary. It may be useful to subjoin the following rule. When the latitude and declination. are both north or both south, the declination must be subtracted from the sun's meridian altitude ; but if (me be north and the other...

An Elementary Treatise on the Application of Trigonomentry to Orthographic ...

John Farrar - 1833 - عدد الصفحات: 274
...shortest day, therefore, become equal respectively to the longest day and shortest night, as before found. It will be perceived from what is above shown, that...after and sets before 6. 89. We have seen that nm and r 3 represent the apparent path of the sun, when at its greatest declination north and south, and that...

An Elementary Treatise of the Application of Trigonometry to Orthographic ...

John Farrar - 1840 - عدد الصفحات: 270
...shortest day, therefore, become equal respectively to the longest day and shortest night, as before found. It will be perceived from what is above shown, that...or both south, the sun rises before and sets after six o'clock ; but when one is north and the other south, the sun rises after and sets before 6. 89....

Nautical Tables Designed for the Use of British Seamen

James Inman - 1849 - عدد الصفحات: 508
...the sun rises before or after EXPLANATION AND USE OK TABLES. XI 6 AM, or sets before or after 6 PM When the latitude and declination are both north or both south, the sun rises so much before 6 AM, and sets so much after 6 PM When the latitude and declination are ote north and...




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