Orientation by the sun allows to define three vital factors: the direction on parts of the world, situation guided rather known settlements and the direction of the movement to familiar objects. Often it happens that there is neither compass, nor the navigator near at hand. In this case, it is possible to define sides of the horizon and by the sun.
It is required to you
- Depending on a way of orientation, hours with shooters or a stick.
Instruction
1. In the territory of the northern hemisphere in summertime the sun ascends in the northeast, and comes in the northwest. At noon (13 hours in the winter and 14 hours in the summer) the sun indicates strictly the South. The shadow from objects lays down on the North. From 10 in the morning to 19 in the evening the sun always is to the south of guided. In winter time the sun ascends in the southeast, and comes in the southwest. Precisely in the east and in the West the sun ascends and comes in days spring about autumn equinoxes (on March 21 and on September 23).
2. Any dial hours will be necessary for more exact definition of parts of the world (hours with shooters). If to direct an hour hand to the sun, then the corner between an hour hand and figure "1" (winter) or figure "2" (summer) should be halved. The got referral will indicate the South. The North will be in an opposite direction. Than to the north there is an area, that will turn out result more precisely. In the southern areas and during the summer period the error of this method can reach 25%. In the spring and in the fall in northern latitudes the accuracy of a method increases. This way gives the maximum accuracy in winter time.
3. The sun moves to the summer period on the sky with an average angular speed of 15 degrees an hour. At 14 o'clock (on summertime) it will be strictly in the south. Each hour a star will be displaced by 15 degrees to the west. For example, at 17 o'clock it will be displaced by 45 degrees to the West. A half of a right angle is also 45 degrees. That is, if at 17 o'clock mentally to postpone a half of a right angle from the direction for the sun to the left, an exact referral on the South will be got.
4. One more way of orientation by the sun which is not demanding knowledge of time. It is necessary to take a stick and to thrust it to the earth vertically. The top of the cast shadow is designated by a point. Later a certain period (for example, half an hour) the sun will move, and the top of a new shadow needs to be designated by a point too. If to carry out an arrow from the first point to the second, an exact referral on the East will be got.