May 12, 2021

The Earth, at maximum speed this weekend – La Provincia


This Sunday, January 5, the Earth is situated in the perihelion, greater proximity to the Sun in its annual orbit. That produces the maximum orbital speed, accelerating 3,420 kilometers per hour above average.

The Earth revolves around the Sun, describing a elliptical orbit of 930 million kilometers, at an average speed of 107,280 kilometers per hour, which means traveling the distance in 365 days and almost 6 hours, hence a leap every four years. Precisely, this 2020 is leap year.

But, according to the second kepler’s law, that translation speed varies, increasing to a maximum in the perihelion – the shortest distance to the Sun – with 110,700 kilometers per hour, and reducing to a minimum in the aphelion, with 103,536 kilometers per hour, more than 7,000 kilometers per hour Of diference.

The aphelion will arrive on July 4

According to Earth Sky, the perihelion of 2020 occurs at 07.48 UTC on January 5, with a distance of just over 147 million kilometers. The aphelion in 2020 will be on July 4, about 5 million kilometers away.

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

So, the orbital velocity of a planet will be lower, the greater the distance from the Sun, and at smaller distances the orbital speed will be greater. The average distance from the Sun is on average 150 million kilometers. In the aphelion it reaches 152.09 million kilometers and in the perihelion it falls to 147.10 million kilometers away.

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