What is the exact time of Grain Rain in 2021? How to calculate the time of Grain Rain?
Grain Rain is a solar term that reflects precipitation phenomena and is the last solar term in spring. When is the Grain Rain in 2021? The lunar calendar is different every day, and the auspiciousness or inauspiciousness of the day will also change with the lunar calendar. If you want to know more about the auspicious and inauspicious days in the third month of the lunar calendar in 2021, please pay attention to the special topic on the third month of the lunar calendar in 2021 on Shuimoxiansheng.com.What is the exact time of Grain Rain in 2021?Grain Rain 2021 Lunar calendar: March 9, 2021 Gregorian calendar: Tuesday, April 20, 2021Specific time of Guyu: 4:33:14 (early morning) How to calculate the time of Grain Rain?Formula: [Y*D+C]-LFormula interpretation: Y=last two digits of the year, D=0.2422, L=leap year number, 21st century C=20.1, 20th century=20.888. For example: The date of Grain Rain in 2016 = [16×0.2422+20.1]-[16/4]=23-4=19, so April 19 is Grain Rain. How to calculate and divide the 24 solar terms?The current "Twenty-Four Solar Terms" are divided according to the solar ecliptic longitude, that is, according to the position of the sun on the tropical ecliptic (solar ecliptic longitude).On a 360-degree ecliptic (the apparent path of the sun on the celestial sphere in a year), it is divided into 24 equal parts, each part is 15°, with the vernal equinox as the starting point of 0 degrees (the beginning of spring is still listed first in the order), and arranged according to the ecliptic longitude. That is, the sun is regarded as starting from the vernal equinox, which is zero degrees of ecliptic longitude. At this moment, the sun shines vertically on the equator, and every 15 degrees forward is a solar term; it runs a circle and returns to the vernal equinox, which is a tropical year. The 24 solar terms are exactly 360 degrees. Every 15 degrees the sun moves on the ecliptic is called a "solar term". The degrees between each "solar term" are equal, but the time is unequal. The "24 Solar Terms" reflect the annual apparent motion of the sun, so the dates of the "24 Solar Terms" in the Gregorian calendar are relatively fixed, with no difference of 1 to 2 days between the two. During the twenty-four solar terms, the movement pattern of the sun's direct point during the "equinoxes and solstices" is as follows: at the vernal equinox, the sun's direct point is at 0° on the equator, and then moves north; at the summer solstice, the sun's direct point is on the Tropic of Cancer (23°26'N), and then moves south; at the autumnal equinox, the sun's direct point is at 0° on the equator, and then continues to move south; at the winter solstice, the sun's direct point is on the Tropic of Capricorn (23°26'S), and then moves north. The 24 solar terms are 24 time points, and the specific day on which a "point" falls is the natural result of the movement of celestial bodies. The solar terms divided according to the "degrees of the sun's ecliptic longitude" begin with the Beginning of Spring and end with the Great Cold. The current 24 solar terms are based on one cycle of the Earth's revolution around the sun, which basically summarizes the different positions of the sun on the ecliptic at different times of the year, the exact time of the change from cold to hot, and the laws of natural phenomena. The Gregorian calendar dates are roughly the same every year: around the 6th and 21st in the first half of the year, and around the 8th and 23rd in the second half of the year. Do you want to know your own Bazi? Want to figure out where your golden marriage is? Click on the [Premium Calculation] below to calculate your horoscope and fortune! |
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