Why will the Earth rotate at maximum speed around the Sun tomorrow? -!: All the details about Why will the Earth rotate at maximum speed around the Sun tomorrow? -! are on topwhich.com. I am happy to present you all the developments about Why will the Earth rotate tomorrow at maximum speed around the Sun? -!. Here’s what you need to know about Why will the Earth rotate tomorrow at maximum speed around the Sun? -!, here are the details … The orbit of the Earth around the Sun is not perfectly circular. Instead, the Earth describes a slightly elliptical orbit, which implies that there are times of the year when the Earth is closer to or further from the Sun. Now, During the next January 4 , our planet will go through one of those moments.
Specifically, on January 4 at 7: 30 in the morning , Spanish peninsular time, the Earth will reach the perihelion , that is, the closest point to the star, as its name indicates (peri from the Greek “near”, and helium from the Greek “sun »). At this point, the planet is around 3% closer to the Sun with respect to the aphelion, the point at which we are farthest from the sun at early July.
January 4: closer than ever to the Sun
That difference is about 5 million kilometers , compared to the average distance at which our planet is normally located with 150 million kilometers. In the aphelion, the Earth is at 152, 1 million kilometers from the Sun, while at perihelion it is 147, 1 million kilometers , which makes, for example, the Sun look bigger, as in the following image.
In this way, the Earth is closer from the sun each year in January, when it is winter in the northern hemisphere, and is at the furthest point in July, when it is summer in the northern hemisphere . This effect allows us to see that, clearly, the proximity of the Earth to the Sun hardly influences the seasons, but it is the inclination of our planet that affects.
In winter, the tilt of the Earth’s axis causes the northern hemisphere to be slightly tilted back with respect to the Sun, so that there are fewer hours of light, and also colder. In summer, as the translational movement is completed, the part that is more inclined towards the Sun changes, and therefore the northern hemisphere has a greater incidence of light.
The dates in which the inclination towards the Sun is greater and less are those that you will already know by the hours of Sun in the northern hemisphere. The least sunny day of the year, December 29, is the day in which the tilt “backward” of the northern hemisphere is greater with respect to the sun. On the other hand, the 21 of June, is the day in the northern hemisphere It is more inclined to the Sun, hence it is the day with the longest hours of Sun.
Thus, although proximity to the Sun does not affect the existence or not of seasons It does affect its duration. The closer the Earth is to the Sun, it is moving faster to 30, 3 km / s , compared to 29, 3 km / s to which it moves in July when it is further away. Therefore, the winter in the northern hemisphere , and the summer in the southern hemisphere , are the shorter stations . Specifically, summer lasts 5 more days in the northern hemisphere, while in the southern hemisphere winter lasts 5 more days.