Jeddah Astronomical Society: Earth is reaching perihelion



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Space

Jeddah Astronomical Society: Earth is reaching perihelion

The sun is behind the Metropolitan Cathedral of Saint Paul in the fortified medieval city of Medina.

The Jeddah Astronomical Society revealed that the Earth will reach its perigee on Saturday, which is the closest distance in its orbit around the sun, at 01:51 GMT, coinciding with the winter season in the northern half.

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Cosmologists look for traces of

A report by the Society stated that “the Earth will be at a distance of 147,093,162 million kilometers, about 5 million kilometers closer to the sun (the distance between the center of the earth and the center of the sun), compared to what will be in six months when it reaches the apogee, which is the farthest distance from the sun, in the fifth since July, at a distance of 152,100,533 kilometers from the sun.

It is noteworthy that the difference in distance between the perihelion in January and the apogee in July is not significant, because the Earth’s orbit around the sun is almost circular, and therefore the distance that separates us from the sun is not responsible for the occurrence of the four seasons, but of the inclination of the axis of rotation of the earth around itself. It is the reason, as in the winter season, the North Pole tilts away from the sun, while it leans towards the sun, during the summer, and although the approach and departure of the Earth is not responsible for the occurrence of the seasons. , this affects the duration of that length. seasons.

And when the Earth is close to the Sun, as it is now, it moves faster in its orbit, as it runs at a speed of about 30.3 kilometers per second, faster compared to its speed in early July, so that the winter season in the Northern Hemisphere is the shortest of the four seasons.

Source: “The seventh day”



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