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Tomorrow, Friday, July 6, Earth will be at its furthest point from the 2018 Sun. And will move at approximately 3,600 kilometers per hour more slowly than usual.
To understand this phenomenon, one must know what the terms aphelion and perihelion signify: aphelion is a word of Greek origin meaning "far from the sun" and "the point of the earth's orbit around the Sun where the Earth is farthest from our star, "explained to BBC Mundo Nayra Rodríguez Eugenio, astrophysicist and revealer of the Institute of Astrophysics of the Canary Islands.
As such, she explained that perihelion (near the Sun) is just the opposite point to aphelion. It is the point of the orbit where the Earth is closest to the Sun.
The expert pointed out that "in perihelion, the Sun is about 147 million kilometers from Earth, and when it is in the aphelion is about 152 million kilometers from the Sun. "The difference in distance varies by the fact that the Earth's orbit around the Sun is not a circumference but elliptical. And a greater distance means a lower speed.
The greater distance in aphelion means that the orbital translational velocity will be about 105,444 kilometers per hour, or about 3,600 kilometers per hour less than perihelion velocity. 19659006] Every year, the aphelion takes place between the 2nd and the 7th of July. This perihelion of 2018 took place on January 3rd.
The greatest distance between our planet and the Sun will be Friday, July 6th at 17:46 GMT, while the Earth and its star are at 152,095,566 kilometers.
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