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Page 39
The mathematically inclined reader will skip a lot of tabular drudge work by simply noting that the desired top row consists of items 1, 25, 49, 73, 97, 121, and 145 in a series that repeats at intervals of seven. These numbers, taken modulo 7, are 1, 4, 0 (or 7), 3, 6, 2, and 5. These integers are the indices for Saturn, the Sun, and so on, in the original table that lists the planets by apparent speed (Table 2.3).
Table 2.2 Ordering of planets in a day.
HourPlanet
1Saturn
2Jupiter
3Mars
4Sun
5Venus
6Mercury
7Moon
8Saturn
9Jupiter
10Mars
11Sun
12Venus
13Mercury
14Moon
15Saturn
16Jupiter
17Mars
18Sun
19Venus
20Mercury
21Moon
22Saturn
23Jupiter
24Mars

 
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