The spring equinox in 2018 is 00:15:24 on March 21, and the fifth day of February (the first day of the University) in the lunar calendar. Since today, the northern hemisphere has officially entered the spring, and all regions of China have entered the spring. Spring equinox is the same day and night. The night is as long as the day. It's a very comfortable season.
Spring equinox, also known as "mid day", "day and night" and "mid spring month" in ancient times, intersects around March 21 (20-22) every year, and the date of the lunar calendar is not fixed. When the sun reaches 315 degrees in the Yellow longitude, spring begins. Spring is the first day of spring. The handle of the Big Dipper is pointing to the East, which is the orientation of spring. At this time, although the weather is still very cold, but 'one day in spring, the water is warm by three points'. After the beginning of spring, the weather is also slowly warming up. So, what's the meaning of the equinox? What's the meaning of the equinox?
Origin and traditional customs of the spring equinox
When is the spring equinox in 2018
Connotation of vernal equinox
On the Equinox Day every year, the sun is directed directly at the equator, i.e. almost all the world's days and nights are the same time. That is to say, the Equinox Day is actually divided into days and nights. After the spring equinox, China's day time will gradually lengthen, and the night will gradually shorten. Such changes will continue until the autumn equinox, and then China will enter the rule of short day and long night.
Why to say the equinox of spring and Autumn
What does the equinox mean
The spring equinox is Equinox Day and night, almost equal in length all over the world.
Every year, on March 20 of the Gregorian calendar, when the sun is at 0-DEG (vernal equinox), it is the vernal equinox. On this day, the sun is almost directly directed at the earth's equator, and almost all parts of the world are the same length day and night (regardless of the refraction of the atmosphere to the sun's light and the shadow of the morning and dusk). After the vernal equinox, the direct point of the Sun continues to move from the equator to the northern hemisphere. The days in the northern hemisphere are longer and the nights are shorter (the days in the day are longer than the nights), and the days in the southern hemisphere are shorter and the nights are longer (the days in the day are shorter than the nights). So spring equinox is also called rising equinox.
At the north and south poles, the sun is on the horizon all day. Since then, with the continuous northward movement of the direct solar point, the polar day began to last for six months near the Arctic, and the range gradually expanded; the polar night began to last for six months near the Antarctic, and the range gradually expanded.
It is worth noting that the days in the northern hemisphere are longer and longer from the winter solstice, but the days are longer than the night from the spring equinox; the days are shorter and shorter from the summer solstice, but the days are shorter than the night from the autumn equinox.
Why there is the saying of three seasons of spring equinox
In ancient China, the vernal equinox was divided into three phases: 'one is the arrival of yuanniao; the other is the sound of thunder; the third is the beginning of electricity. 'it means that after the spring equinox, swallows come from the south. When it rains, the sky will thunder and flash. The vernal equinox is recorded in the ancient Chinese calendar as: 'three days before the equinox, the sun enters the equator'.
The first time of spring: Dongfeng thaw
The east wind warms, and begins to dissolve the cold and ice on the earth.
The second Marquis of spring: the first vibration of sting
Lurking in the ground, all kinds of insects feel the vitality of early spring and start to move, that is to say, they move in their sleep and haven't come to.
The third marquis in spring: the fish and the ice
The meaning of "Zhi" is to rise. Because the water temperature is getting warmer, the fish are competing to float to the water surface. Because there is still unfused ice in the water, it looks like the fish swimming in the water with ice on its back.
Lichunri bathing formula
"Cloud collection of seven signs" said: 'to establish the spring morning, boil Angelica dahurica, peach skin, qingmuxiang three soup bath, auspicious. '
About what is the meaning of the vernal equinox, the relevant content of the connotation of the vernal equinox is introduced here.