lennuliikumise

Lennuliikumine, also known as orbital motion, is the motion of an object around a central point, such as a planet around a star or a satellite around a planet. This type of motion is governed by the laws of classical mechanics, specifically Newton's law of universal gravitation and his second law of motion. In the context of celestial bodies, the central point is typically a star, and the orbiting body is a planet or a smaller celestial object.

The shape of an orbit is determined by the initial velocity and position of the orbiting body relative to the central body. The most common type of orbit is the elliptical orbit, where the orbiting body follows an elliptical path around the central body. In an elliptical orbit, the central body is located at one of the two foci of the ellipse. The other common type of orbit is the circular orbit, where the orbiting body moves in a circular path around the central body.

The period of an orbit is the time it takes for the orbiting body to complete one full orbit around the central body. The period of an orbit depends on the mass of the central body, the distance between the central body and the orbiting body, and the shape of the orbit. The period of an orbit can be calculated using Kepler's laws of planetary motion, which describe the relationship between the period of an orbit and the size of the orbit.

Lennuliikumine is an important concept in astronomy and astrophysics, as it helps to explain the motion of celestial bodies and the formation of planetary systems. It is also relevant in the field of space exploration, as it is essential for the design and operation of spacecraft and satellites.