What is Perihelion?

Perihelion is a point in the orbit of the Earth, where it is closest to the sun. The opposite is called Aphelion, where the Earth moves the farthest. During Perihelion, the sun light is more intense due to increased proximity. This event usually occurs in January, several weeks after the winter solstice in the northern hemisphere. Although it might seem that it should be summer for everyone when the Earth is near the Sun, the seasons are determined by the inclination of the planet, not its location in space. In Perihelion, the country is nearly 92 million miles (about 147.5 million kilometers) from the Sun, while in Aphelion it is close to 95 million miles (around 152.6 million kilometers). These relatively small distances are the result of the almost circular orbit of the Earth around the Sun; From a scientific point of view, it is said that it has "low eccentricity", unlike planets, such as the regiment that has much more exaggerated elliptical orbit.

DatingIt can go from year to year because the Earth's orbit around the Sun does not last exactly 365 days. Scientists can calculate the exact date and time of Perihelion using predictive formulas and calendar modifications such as offense years. Regularly, they will have to add jump seconds or other units of time to compensate for small variants that can contribute for a longer period of time. They can also use this information to extract backwards to determine the perihelion date at different points of history.

Scientists can use different tools to measure distance in Perihelion and to determine the intensity of light on the Earth's surface during this period. The Earth's regular orbit is one of the reasons why the plant is habitable because it does not pass extremes when it moves around the sun. The seasons are the result of the tilting out of the center, but remains relatively mild. Planets with similar orbital characteristics can also potentially have life and sometimes are the goal for searching astronomers.

observers on zEMI does not have to notice much different during Perihelion and Aphelion. The size of the sun would seem the same for those who used tools to view safely, as strongly filtered cameras. While the light of the sun is more intense, the difference is not significant enough to notice people on Earth without specialized tools.