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THE MOON

If you know when the moon, in its various phases, rises and sets, you can use it as a watch or compass. Your newspaper or a local observatory can give you this information.

The moon in its first quarter rises in the south at dusk and sets in the west at about midnight.

For the last quarter, it rises in the east at about midnight and sets in the south at dawn.

When the moon is full, hold your watch so that the hour hand points at the moon. South will be at the halfway point between the hour hand and the figure 12.

South

The waxing or waning moon will serve you as a compass if you first determine:

(1) whether the moon is waxing or waning,

(2) about how many twelfths of the face of the moon are visible,

(3) how late it is.

With a waning moon, subtract as many hours from the actual time as there are invisible twelfths of the moon. With a waxing moon, add as many hours as there are invisible twelfths.

Take the new time arrived at in this manner, and line up the figure on your watch for this hour with the center of the watch and the moon. Then, the halfway mark between 12 and this number on your watch points south.

Find north by reading clockwise from the hour hand before midnight, counterclockwise after midnight.

Example: At 8 o'clock in the evening, with a waxing moon (M). About half the face is visible (i.e., about 6/12). Therefore: eight plus six hours equals 2 o'clock. Align the figure 2, the middle of the watch, and the moon. The north-south line lies halfway between the 12 and the 2.

Related terms include outdoor activities and family camping resort.