Why is the moon round on August 15th?

Because on this day, the moon runs in the positive direction of the earth, and we see the moon from the earth, just in the positive direction of the moon, just like two points and one line.

The moon revolves around the earth in an elliptical orbit. It takes an average of 29 days 12 hours and 44 minutes from one full moon to the next. When you look at it, the moon, the earth and the sun are closest to a straight line, so the moon is the roundest and brightest. However, due to the speed of the moon's rotation, the time to reach Wangwang is different every time, mostly in the early morning of the 16th or 17th lunar month.

The most perfect and brightest moment of the moon is when looking. On the first day of the lunar calendar, when the moon moves between the earth and the sun, the half moon illuminated by the sun is just behind the earth, and we can't see the moon, which is called "new moon" or "new moon"; On the fifteenth day of the lunar calendar, when the moon moves in the opposite direction to the sun for the earth, we can see a full moon, which is called "full moon" or "looking".

Matters needing attention in enjoying the moon on August 15th.

1. Choose the right time: August 15, when the moon rises in the evening, the best effect is to enjoy the moon. In addition, the most round moment of the moon is usually around midnight, which is also the best time to enjoy the moon.

2. Pay attention to the weather: pay attention to the weather forecast before enjoying the moon to avoid rainy weather. If the weather is clear and the air is fresh, the effect of enjoying the moon will be better.

3, prepare to enjoy the moon: you can prepare some moon cakes, fruits, snacks and so on. While enjoying the moon, taste the food. In addition, you can also carry binoculars, cameras and other equipment to better watch and record the beauty of the moon.

4. Safety precautions when enjoying the moon: When enjoying the moon outdoors, pay attention to safety and avoid watching it in dangerous areas such as steep hillsides and nearby waters. At the same time, we should abide by public order and not crowd to avoid accidents.

The above contents refer to Baidu Encyclopedia-Fifteen moons and Sixteen Rounds.