How to determine the cardinal points by the clock

When you are in an unfamiliar area or before entering the forest, you need to determine the location of the cardinal points to imagine where to move. If you have a compass with you, the orientation problem has been resolved. But what if the compass is missing? In this case, the definition of cardinal points by analogue wristwatch will save.

How to determine the cardinal points from the hands of the clock?

As you know, the main geographical directions are tied to the cardinal points. The northern and southern parts of the world are determined in accordance with the magnetic poles of the Earth, and the East and West - in relation to the direction of its rotation. The usual orientation of a person when finding parts of the world is based on the fact that the North is at the top of the geographical map, the South is at the bottom, and the West and East are left and right, respectively. Orientation by the Sun is associated with finding the eastern and western directions relative to the place of its sunrise and sunset.

With the help of mechanical watches, you can navigate not only by day, by the sun, but also by night by moonlight. The main condition for this is that the clouds do not block the light in the sky. The main detail with which the mechanical clock orientation method is associated is the clock hands. If the watch is electronic, you need to mentally imagine the dial with the divisions and the location of the large clockwise. To know how to determine the cardinal points of the clock, you need to follow the step by step instructions.

Beautiful watch for the definition of light

How to determine the cardinal points from a mechanical watch and the sun

The determination of the southern direction is made by the dial, located horizontally. The large hour hand must be directed to the solar disk, determining its location using the shadow of any plummet, for example, a match. The arrow should be parallel to the shadow. Further, taking into account the maternity time of different time zones, you need to draw an imaginary line between two pointers: the clock hand and the direction of the division of "one" or "two". The result is a south direction indicator at the moment. If orientation is carried out in winter, then a bisector pointing to the south will be drawn between the clockwise and division with the number one indicated, and if in the summer, with the index two. It was at this time that the sun is in the south of Russia at different times of the year. If the orientation is not in the Northern, but in the Southern Hemisphere, this way is the northern direction. The closer to the equator, the greater the measurement error. Relative to mid-latitudes in summer, the error of this method can be up to twenty degrees.

If the measurement is made before noon, the bisector must be divided in half the angle that must be passed by the arrow before one in the afternoon. If the orientation occurs in the afternoon, the arc is divided, which must be completed after one in the afternoon.

If there are no analog watches, you can depict them by drawing on the ground. The arrow must be drawn in accordance with the direction to the sun, and the entire circle as accurately as possible divided into equal intervals, simulating divisions with numbers on an analog dial.

Definition of the parties by the moon and a mechanical watch

Determine the cardinal points with a mechanical watch

Orientation on the Moon using an analog clock is based on a preliminary determination of the time of sunrise in the direction where the Moon is. To navigate, you need to do the following:

    • Mentally divide the lunar disk into six equal shares.
    • Determine how many of them are in the visible part of the surface of the moon.
    • Note the exact time indicated by the clock.
    • By the hour at the time of observation, add or subtract from it the number of visible equal shares. If the moon is waning, the right amount should be added, and if it is growing, subtract. To make it easier to find out whether the "young" Moon or the "old" one can remember that with the growing moon, its right side is visible, and with the waning moon, the left side of the disk. The result is another number.
    • The resulting number must be found on the dial, combining with the direction line to the moon. The southern direction will be shown by a segment that divides the angle between the mark of the number 1 on the dial (in winter) or 2 (in summer) and the line pointing to the lunar disk.

Watch the video: Finding North Using A Wristwatch (April 2020).