The new moon is an astronomical phenomenon. It means that on the first day of each month in the lunar calendar, when the moon moves between the sun and the earth, the moon faces the earth with its dark side and rises with the sun. At the same time, the moon is not visible from the earth.

Detailed explanation in Chinese:

1. The curved moon that rises at the beginning of each month in the lunar calendar.

2. The full moon falls on the fifteenth day of the lunar month.

3. The moon phase of the new moon. At this time, the moon is between the earth and the sun, and its dark side is opposite the earth. There is no moonlight on the earth, which is called Dingshuo.

The symbolic meaning of the crescent moon in religion:

The "crescent moon" is a religious symbol in Islamic countries. It is the free translation of the Arabic "Hilal", which originally refers to the first quarter moon, commonly known as the crescent moon. In astronomy, it is called "Suo", which refers to the moon phase when the moon passes between the sun and the earth. Its symbolic meaning is rise, rebirth, happiness, auspiciousness, initial light, and new time. It means that the new moon symbolizes the new era of human civilization created by Islam.

Extended information

Explanation of the formation of the new moon in astronomy:

The different phases of the moon are related to the direction in which the moon is observed. If you observe the moon from the direction away from the sun, the moon is completely black, then the moon is called a new moon; conversely, if you observe the moon from the direction towards the sun, the moon is completely bright, then the moon is called a full moon.

The change of moon phase is the process of gradually changing from new moon to full moon, and then from full moon to new moon. When the new moon appears, the moon and the sun are on the same side of the earth. This is called the sun-moon conjunction, also called "Suo". When the full moon appears, the moon and the sun are on opposite sides of the earth. This is called the sun-moon opposition, also called "looking". Therefore, the changes in the moon phases can also be called synodic changes.

Baidu Encyclopedia-New Moon