In February 2262. Calendar query in February 2262

Lead: In 2262, that is, 244 years from now, our descendants will encounter such a rare thing as the leap of the first month, and maybe they will have two Spring Festivals. The Gregorian calendar 65438+ 10 is the Spring Festival on the first day of the first month, and the Gregorian calendar also has the first day of the first month in February, which is the Spring Festival of leap months. Now let's look at the calendar in February 2262 by querying and see for ourselves what the Spring Festival in leap months looks like.

In February 2262. Calendar query in February 2262

In February 2262. Calendar query in February 2262

Why is there a leap month in the lunar calendar?

The period of the first lunar month is 29.5366 days, which is 29 days 12 hours, 44 minutes and 3 seconds. So the lunar calendar also produced a big moon and a small moon. The big moon has 30 days and the small moon has 29 days.

Because the first day of each month in the lunar calendar must be a new moon, its big moon and small moon can only be determined by strict calculation. Sometimes there may be two big months or two small months in a row.

The first month of the lunar calendar is longer than 29 and a half days, so every 100 calendar month of the lunar calendar, there are about 53 big months and 47 small months.

The lunar year is basically 12 months, but the total time of 12 lunar months is 354.3667 days, and the total time of the tropical year (the earth revolves around the sun) is 365.2422 days, with a difference of about 1 1 day. This adds up to 33 days every three years. In order to eliminate the extra days, one month is added every three years, which is the leap month of the lunar calendar. Therefore, in the leap year of the lunar calendar, there is a strange phenomenon of one year 13 months.

The problem is that a leap month is inserted in the lunar calendar every three years, because there are only 30 or 29 days in a month, and the lunar calendar is 33 days shorter than the year of the return, and there are still 3 extra days that cannot be arranged. What shall we do in order to coordinate this contradiction, add seven leap months to 19 lunar year, which is close to the length of 19 tropic year. Therefore, the lunar calendar stipulates that 19 lunar calendar has seven leap months in a year, which is equivalent to one leap month in 2.7 years.

How to determine the month of the lunar leap month?

How to determine the month of the lunar leap month?

What month is the lunar leap year? This requires manual adjustment of the lunar month to match the fixed solar terms. We know that there are solar terms and neutral atmosphere in the 24 solar terms, and the neutral atmosphere is the main symbol of a month.

The 24 solar terms and neutral gas are as follows:

Beginning of spring, it rains; Surprise, vernal equinox; Qingming, Grain Rain; Long summer, small full; Miscanthus, summer solstice; Slight heat, great heat; Beginning of autumn, in summer; White dew and autumnal equinox; Cold dew, first frost; Beginning of winter, Xiaoxue; Heavy snow and winter solstice; Slight cold, severe cold.

Under normal circumstances, solar terms and neutral gases form a lunar month. For example, in beginning of spring, it rains in the first month; The tingling and vernal equinox make up February ... and so on. In the normal lunar year, beginning of spring is on the first day of the first month, and it rains on the fifteenth day of the first month. The fright is around the first day of February, and the vernal equinox is around February 15th. ......

Once the month deviates too far from the solar terms, it indicates that the leap year is coming. For example, 20 1 1, the slight cold festival was not held until the thirteenth day of the twelfth month, and the great cold festival was not held until the twenty-seventh day of the twelfth month. 20 12 beginning of spring is actually postponed to the 13th day of the first month; Scare was postponed to February 13; Qingming Festival was postponed to March 14, and Grain Rain was postponed to March 30th. The long summer was postponed to April 15 and April 1 day. The original order of lunar months has been disturbed, so leap months must be added.

Lunar leap year has 13 months, and the extra 30 days are generally not neutral. Then, the month without neutrality is designated as leap month, and the month before it is named as month, and a leap word is added.

The above example shows that 20 12 is a leap April. Because the previous month was April, and then there were 30 more days, and we were out of breath, we called it leap April.

By placing leap, the artificial lunar month gradually coincides with the fixed solar terms. For example, 20 13 lunar July: the first day of beginning of autumn, the seventeenth summer; The Millennium is on the third day of August, and the autumnal equinox is on August 19th. ......