What are new moon, full moon and peace moon?

1. The new moon appears on the 30th or first day of every month in the lunar calendar, and the moon lies between the sun and the earth. People on the earth only see the moon deviating from the dark side of the sun, so they can't see the moon on the earth. This is called a new moon or a new moon. This moon phase rises and sets with the sun, that is, it rises in the morning and sets at dusk, and it can only be found during the solar eclipse.

2. The full moon appears on 15 and 16 of the lunar calendar every month, and the moon moves to the outside of the earth, that is, the sun and the moon are located on both sides of the earth. Because there is an included angle θ between the ecliptic plane and the ecliptic plane (the average value of θ is 5 09'), under normal circumstances, the earth can't block the sunlight, and the bright side of the moon faces the earth, so people can see a bright moon, which is called full moon or moon. When the sun sets at night, the full moon rises on the eastern horizon, lies in the southern sky at midnight and sets on the western horizon in the morning. You can see the moon all night.