Always on the move, always fast … at some point he had to stop a little. That will happen on July 5th exactly. The earth is slowing down that day. It will reach the furthest point in its orbit from the Sun in 2021. This astronomical milestone is known as aphelion. It takes place between July 2nd and 7th every year.
The exact moment of greatest separation will occur at 22.06 UTC. The earth and the sun will meet 152,100,533 kilometers apart. They are around five million kilometers more than in perihelion, which took place on January 2nd this year. Reported by Earth Sky.
The earth rotates around the sun and describes an elliptical orbit of 930 million kilometers. Its average speed is 107,280 kilometers per hour. Travel the distance back in 365 days and almost 6 hours. For this reason, a jump is counted every four years.
But according to Kepler’s second law, this translation speed varies. It reaches a maximum in perihelion – the shortest distance from the sun – at 110,700 kilometers per hour. And it is reduced in aphelion. It reaches 103,536 kilometers per hour, more than 7,000 kilometers per hour apart.
Kepler recognized this. The line connecting the planets and the sun covers the same area in the same time. What does that mean? When the planets are in their orbit near the sun, they move faster.
The earth reduces its speed at a greater distance from the sun, at shorter distances the orbital speed increases. The mean distance from the sun averages 150 million kilometers. At the aphelion it reaches 152.09 million kilometers and at the perihelion it drops to 147.10 million kilometers. If you’re not feeling dizzy right now, that would be really surprising.