Ejercicios interactivos
Orbital movement

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Is that which the Earth makes around the Sun, having an elliptic orbit of 93 million km, a speed of 28.9 km per second.

In this movement, days and 6 hours are invested. These 6 hours that accumulate over each year, after 4, add up to 24 hours (one day). So every four years, there is one that has days, which is called a year.

The plane that determines the orbit of the Earth is called the orbit and it is the maximum the Earth may move in its rotation around the Sun.

Orbital movement causes the four .
The seasons are determined by the tilt of the Earth’s with respect to the elliptical. According to the position of the Earth with respect to the Sun, some areas on Earth receive more solar radiation than others.

The seasons alternate according to the proximity of each to the Earth. When the Northern Hemisphere is far from the Sun, it will be , while the Southern Hemisphere is closer to the Sun and there it will be summer.

There are four key positions of orbital movement: Spring and Autumn (equinox) and Summer and Winter (Solstice).

During the Spring (21st of March) in the Northern Hemisphere it is Spring and in the Southern Hemisphere it is Autumn.

During the Autumn Equinox (23rd of September) in the Northern Hemisphere it is Autumn and in the Southern Hemisphere it is .

During the Summer Solstice (21st of June) in the Northern Hemisphere it is Summer and in the Southern Hemisphere it is Winter.

Another effect of the tilt of the Earth’s is the difference in the length of day and , according to whether it is or Winter.