Collins, A. Frederick (Archie Frederick), 1869- · New York, London, D. Appleton and company · leaf 178
ded into 360 degrees, as shown in Fig. 163,and it is also divided into 24 parts, each part will be a spaceequal to 15 degrees or 1 hour. Now geographers have divided. THE TIME O DAY 157 the Earth into 24 equal parts by meridians separated by 15degrees, and each space, or belt, between them… … Fig. 163.—Circle Divided into 360 Degrees and 24 Hours. Starting west from the first, or prime meridian, which passesthrough Greenwich the time at the second standard meridian,which is called the 15th meridian because it is 15 degrees fromthe first meridian, will be one hour behind Greenwich time.…
Astronomy · Stars
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