The Earth will move slower this Friday. Why?

The Earth will move slower this Friday. Why?
The Earth will move slower this Friday. Why?
The aphelion corresponds to the point furthest from the Earth in its orbit around the Sun, which affects the speed of translation.

The Earth will move slower this Friday, this is because it will be in the afelio, which corresponds to the furthest point in its orbit around the Sun.

The planet passes through aphelion every year, and to complete its orbit of about 940 million kilometers, the planet reduces its speed compared to the annual average.


According to Kepler’s second law, the speed of translation varies, increasing until it is maximum at perihelion –the shortest distance from the Sun– at 110,700 kilometers per hour, and reducing to a minimum at aphelion, at 103,536 kilometers per hour, a difference of more than 7,000 kilometers per hour.

Kepler realized that the line connecting the planets and the Sun covers the same area in the same amount of time. This means that when planets are close to the Sun in their orbit, they move faster than when they are farther away.

Thus, the orbital speed of a planet will be lower at a greater distance from the Sun, and at shorter distances the orbital speed will be higher. The average distance from the Sun is 150 million kilometers. At aphelion it reaches 152.09 million kilometers and at perihelion it drops to 147.10 million kilometers.

Does it have effects on the seasons?

In response to this, scientist Alfred Rosenberg, from the Institute of Astrophysics of the Canary Islands (IAC) in Spain, explained whether or not this phenomenon impacts the seasons of the year and the climate.

Although one might think that, being closer to the Sun, the seasons in the southern hemisphere are more extreme than those in the north, since the shortest distance from the star coincides with its summer season. However, this is not the case; meteorology and climate are complex systems that are managed by various factors.

An additional important factor is land and ocean cover, which has a major influence on climate. The land area is about twice as large in the Northern Hemisphere as in the Southern Hemisphere, causing greater warming in the North. During aphelion, regions between 20 and 25 degrees North latitude will receive more direct solar radiation, favoring maximum warming in these areas.

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