Tonight the Earth will be even further away from the Sun.
• Tonight the Earth will be even further away from the Sun
Friday evening promises to be unusual: July 6, 2018 raid on Earth celestial axis ... But no! In fact, it will pass the aphelion - the most distant point from the Sun in its orbit.
Many people mistakenly believe that there is a relationship between the change of the seasons and the distance from the Earth to the sun: that is supposedly more than our planet from the Sun, the colder her. In reality, the opposite is true: the most distant point in its orbit of the earth passes right in the middle of summer.
On Friday, July 6, 2018, our planet will be in the most distant from the Sun point in its orbit. This will happen at 19:46 Moscow time. The furthest point from the Sun, which is the Earth, called "aphelion." When our planet is in it, the distance to the luminary is 152 million kilometers. Nearest to the Sun the Earth's orbit is called perihelion point - Earth passes it to the beginning of January, and the distance to the Sun in its more than 147 million kilometers. Because the Earth is at aphelion by 5 million kilometers farther from the Sun than at perihelion, on this day the sun has the smallest visible diameter. However, astronomers say that humans will not notice, because the remoteness of our planet happens gradually over six months.
Complete revolution around the sun Earth makes for 365 days 6 hours 9 minutes 10 seconds, moving lights around on an elliptical orbit with an average rate of 29, 765 km / s.
As we mentioned, the elliptical orbit of the Earth is not the cause of the seasons, all the matter in the planet's axis is tilted by 23, 5 degrees. Summer begins in the northern hemisphere, when it is tilted toward the sun, and winter - when it is tilted away from the Sun. As the Earth moves faster when it is closer to the sun, the winter in the Northern Hemisphere for about 5 days shorter than the summer. And vice versa - in the southern hemisphere summer for 5 days shorter than the winter.