Which is the lunar calendar or the solar calendar?

The new calendar is based on the solar calendar and the lunar calendar is the lunar calendar.

The solar calendar, also known as the solar calendar, is a calendar based on the movement cycle of the earth around the sun. The calendar year of the solar calendar is approximately equal to the tropic year, and a year is 12 months. This "month" has nothing to do with the first lunar month. The month and date of the solar calendar are very consistent with the position of the sun on the ecliptic. According to the date of the solar calendar, we can clearly see the changes of cold and warm seasons in a year. But every month, you can't see the new moon, the new moon and the new moon. At present, the Gregorian calendar, which is commonly used in the world, is a solar calendar, with 365 days in a normal year and 366 days in a leap year. It leaps every four years, once every hundred years, and once again in the 400th year, that is, there are 97 leap years every 400 years. The average length of the Gregorian calendar is only 26 seconds away from the tropic year, and it takes only one day to accumulate 3300 years.

Lunar calendar is one of the traditional calendars in China, also known as lunar calendar, valley calendar, Han calendar, yellow calendar, summer calendar and old calendar. Many people always think that the lunar calendar is the lunar calendar (Chinese calendar), but it is not. The lunar calendar (Han calendar) we are talking about is a combination of yin and yang calendars and leap months, but there is no leap month in the lunar calendar.

The lunar calendar determines the moon according to the law of its movement: the orbit of the moon is called the white road, and both the white road and the ecliptic road are two great circles on the celestial body, which intersect at five degrees and nine minutes. The moon goes around the earth once and appears on the ecliptic twice. The calendar on the 27th is 7 hours and 43 minutes 1 1.5 seconds. This day is called "Stellar Moon". Only when the moon revolves around the earth, the position of the earth changes, counting forward more than 27 degrees, and the moon runs at the speed of 13 degrees 15 minutes every day, so it takes 29 days 12: 44: 2.8 to return to the moon. This is called "the first moon", which is called a month by custom, meaning