editions:ISBN1107497817

A Solar Day is the interval of time between two successive transits of the sun over the same meridian; and the hour-angle of the sun is called Solar Time.

Outline of the Method of Conducting a Trigonometrical Survey, for the ... - Page 169
by Edward Charles Frome - 1850 - 253 pages
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Training Regulations: TR.

United States. War Department - 576 pages

...another. FIG. 3. — Effect of the orbital motion of the earth on time. 14. Apparent time. — a. An apparent solar day is the interval between two successive transits of the real sun across the same meridian. The occurrence of day and night is caused by the earth's rotation...

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