# How to determine the latitude and longitude?

If you get lost in the forest, what will you do? True, determine the latitude and longitude of the object! For what? To transfer by mobile phone about the location. For example, yourself in the forest ...

## Identify any point on the earth's surface

With the help of geographic coordinates of latitude and longitude, in principle, you can determine any point on the earth's surface. If we mentally represent the globe, then at the intersection of the planes of the equator we obtain circles - parallels. From the equator, the distance to each of the poles is 90 °. Perpendicularly located meridians. The conditional system of parallels and meridians is necessary to determine the location of objects.

It is known that the hemisphere, which is turned by the pole towards the star Polaris, is called the northern hemisphere. The opposite hemisphere - southern. The pole star is in the constellation Ursa Minor. How to determine the latitude and longitude? In fact, to determine the longitude and latitude of the object is quite simple.

## Determination of geographic longitude

1/360 of the equator is considered the degree of geographical longitude. For 1 hour, the Earth rotates around its axis, which corresponds to 15 ° longitude. Since the Earth makes a complete revolution in a day, which equates to 24 hours. That is, 1 ° longitude = 4 min. time, and 1´ = 4 seconds of time, and 1 "= 1/15 seconds of time.

Using the clock you can determine the longitude. The time of such hours should be set with a known longitude by location. Check in the clock, it is possible at local noon. The difference in time must be converted to a degree measure, based on this example.

## How to determine the latitude

The latitude can be determined as follows. The first thing to do is determine the length of the day. The duration of the day is determined only between sunrise and sunset. That is, between sunrise and sunset. In the original nomogram you should postpone the length of the day in the left part. In the right part - the date. The nomogram is the definition of latitude. If we combine the length of the day and the date (values), then we determine the place where the geographic latitude intersects with the middle part. This will be the initial latitude of your locality.