What is a Satellite (natural and artificial)

As satelite We designate the smaller body that orbits around another larger body. Astronomy differentiates between two types of satellite: natural celestial bodies and artificial ones. The word, as such, comes from Latin satellites, satellitisand was originally used to refer to the king’s guard or escort, hence it was later used to designate what is around or around something.

In this sense, it can be used to refer to a person who depends or is subordinate to another person of higher rank. Within the demographic organization, for its part, there is also the concept of satellite city, which implies the creation of a city dependent, in terms of economic activity, on another of greater importance. Likewise, it can be used to refer to a State that is politically and economically dominated by another State that has greater power.

In mechanics, satellite can designate the toothed wheel of a gear that rotates on an axis and whose function is to transmit the movement of another toothed wheel.

Natural satellite

A natural satellite is an opaque celestial body, whose brightness is the reflection of a larger star, which orbits a major or primary planet. The satellite, as such, accompanies the planet in its translational movement around the star that it, in turn, orbits. The satellite that is most familiar to us is the Moon, although other planets in the solar system, such as Jupiter, Mars or Saturn, also have their own satellites or moons.

You may be interested Solar system.

Artificial satellite

An artificial satellite is a space vehicle that has been placed in orbit around the Earth (or some other star), equipped with technology for the collection and retransmission of information. Its orbit can be low, medium, elliptical or geostationary (in accordance with the speed of the Earth), depending on the type of functions for which it is intended, which may be peaceful, for the transmission of geological, cartographic, meteorological or experimental data. , as well as for applications in the telephone and television industry, or military, such as espionage.

Weather satellite

A meteorological satellite is one whose essential function is to monitor the weather and environmental conditions of the Earth to collect and retransmit information. In this sense, a meteorological satellite, in addition to tracking phenomena associated with the climate, covers aspects of atmospheric activity such as air pollution, polar auroras, forest fires, sand storms, ocean currents and phenomena such as hurricanes or volcanic eruptions; Likewise, it is also useful to observe the state of the ozone layer, the color of the seas, the lights of cities, or the snow-covered areas on the earth’s surface.

Communications satellite

A communications satellite is the type of satellite used for the emission and retransmission of signals in large areas of the Earth’s surface using radio or microwave frequencies. In this sense, its function is similar to that of an antenna, but its range of action is greater and more effective. They are generally geostationary satellites used largely by the telecommunications industry.

See also:

Moon

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