Let's sort out the events first: has the moon opened this year? Thin face? Special effects I wonder if this year's friends have found the moon in the Mid-Autumn Festival. Thin? Anyway, the author didn't see much difference. However, according to relevant astronomers, there are some full moons in the Mid-Autumn Festival this year. Thin? The reason is influenced by the distance between the moon and the earth. How to understand it? Next, I'll give you a popular science lesson.
Second, the reason: the distance between the moon and the earth is not static. As the title shows, the moon's orbit around the earth is not circular, but elliptical. Imagine that the shape of an ellipse is narrow on both sides and wide at the head and tail, which inevitably leads to the fact that sometimes the moon will be closer to the earth when it turns to the narrow side, and it will be farther away from the earth when it turns to the wide side.
Then we all know that the moon looks big when it is near and small when it is far away. So all my friends understand.
Third, it is more intuitive to present problems with data. Astronomers have calculated that the average distance from the Earth to distance to the moon is 38,44010000 km, the distance of the moon passing through the perigee of elliptical orbit is 3,564100 km, and the distance of the moon passing through the apogee is 406,700 km. The difference between the nearest and farthest distance is nearly one eighth.
Does the data directly illustrate this problem, and the full moon seems to be the most this year? Small? It is 40632 10000 kilometers away from the earth, with the longest distance of 406700 kilometers, which is very close. So some experts pointed out that this year's moon looks more? Hey? .
Of course, we may not find it with the naked eye. After all, there is no comparison, at least the author didn't find the difference. I wonder if my friends have found out?