What's with the moon during the day?

You can see the moon during the day, probably because of the different brightness. Every morning or evening, when the sun rises or sets, the brightness is low, and the blue sky can't cover the moon, so the moon will be seen during the day.

2. The sun and the moon shine together

You can see the moon during the day, which may be the phenomenon that the sun and the moon shine together. The period of the earth's rotation around the sun is one year, while the period of the moon's rotation around the earth is twenty-seven days. In the process of rotation, the sun and the moon will appear on the horizon at the same time in a certain period of time, thus forming the same glow of the sun and the moon.

3. The shape of the moon

The shape of the moon will change constantly within a month. In the lunar calendar, the moon on the first day is a thin curve. The moon from the second day to the sixth day and from the 24th day to the end of the month is like a curved eyebrow. The moon on the 8th and 23rd day of the seventh day is a semicircle, and the moon from the ninth day to14th day,17th day to the 22nd day is an ellipse.

4, the importance of the earth's rotation

The visibility of the moon on the earth depends entirely on its position in orbit. The moon orbits the earth in less than 30 days. During this period, it presents different shapes in our sky, which is usually divided into eight stages.

In a given period of time (about a full moon), the moon rises with the sunset, because the moon and the sun are opposite in our sky. Therefore, at every full moon, the sun, the moon and the earth are arranged as follows, and we can see the sun setting and the moon rising at the same time (on the other side of the horizon).

But with the passage of time, the position of the moon is getting closer and closer to the sun until the new moon finally reaches the nearest position to the sun, when the moon almost rises and sets with the sun. Therefore, the moon becomes less bright at night, but more obvious during the day. Due to the constant rotation of the earth, the moon appears above the horizon for about 12 hours, which coincides with the sun's 12 hours on the horizon, so we can see the moon all day.