Definition of

# Orbit

**Orbit** is the trajectory that a **body** in space because of **gravitational action** that the stars exert. the german scientist **Johannes Kepler** (**1571**–**1630**) was the one who analyzed, for the first time, the orbits from mathematical calculations. **kepler** postulated that the orbits of the **planets** of the **Solar system** are elliptical and noted that the **sun** it is not the center of these orbits, but one of their foci.

**kepler** He also stated that the orbital speed of a planet is not constant since it depends on the distance from the sun and found a universal relationship between the properties of the orbits of all planets revolving around the sun.

**Newton and orbits****Classification according to type****Orbit in physics and anatomy****The term in adverbial locutions**- Related Topics Tree

## Newton and orbits

English **Isaac Newton** (**1643**–**1727**) made other very important contributions to understanding the functioning of orbits. His universal law of gravitation and his laws of motion indicate that the sum of the forces is equal to the mass multiplied by its acceleration, while gravity is proportional to the mass and inversely proportional to the square of the distance.

In this case, it must be established that when being able to study and analyze an orbit, a series of fundamental elements must be taken into account. We are referring, therefore, to issues such as eccentricity, inclination, the perihelion argument, the average anomaly, the semi-minor axis, the longitude of the ascending node or the true anomaly.

It can serve you: Elliptical

## Classification according to type

There is a great variety of orbits based on the different criteria used to classify them. Thus, for example, if we use what would be the central body as a starting point, we would find four fundamental types of orbits: lunar, terrestrial, solar and Martian.

However, if the criteria to be used is the set of characteristics, we would have to talk about what are elliptical, inclined, circular, graveyard, ecliptic, synchronous, semi-synchronous orbits…

See also: Evaluation criteria

## Orbit in physics and anatomy

For the **physical**an orbit is the path followed by a particle subjected to electromagnetic fields in particle accelerators and the path followed by a **electron** around the **core** of a **atom**.

In the field of anatomy, the orbits are the **cavities** that are located on both sides of the face to house the **eyeballs**. It usually has a depth of between 42 and 50 millimeters, with a width of 40 millimeters at the base and a height of 35 millimeters.

Continue in: Electronic configuration

## The term in adverbial locutions

In addition to all of the above, we cannot ignore the existence of a large number of verbal locutions that we use in our day to day and that make use of the term orbit that we are now analyzing. This would be the case of the expression “to be in orbit”. With it, it comes to express that a person is involved in a specific matter or is conveniently informed about it.

On the other hand, we have the verbal locution “to put into orbit” that has two meanings. Firstly, it means that a person is experiencing a stage of popularity and secondly, that he has launched into space on a certain satellite.

See also: Past simple