What is the solar term of 65438+February 22nd?

65438+February 22nd is the winter solstice.

spring

The sun in beginning of spring is located at 365, 438+05 degrees of the Huangjing, and the solar term is from February 2 to 5.

The rainy day is located at 330 degrees longitude of the Yellow River and will be on February 18-20.

The stung sun is located at 345 degrees of the yellow meridian, and it will pass through on March 5-7.

At the vernal equinox, the sun is located at 0 degrees of the yellow meridian and crosses on March 20-22.

The Qingming sun is located at longitude 15 degrees, and the festival will be held on April 4-6.

The sun in the Grain Rain is located at 30 degrees longitude of the Yellow River and intersects in April 19-2 1.

summer

The sun in the long summer is located at 45 degrees of the yellow meridian, and there will be solar terms from May 5 to 7.

Xiaoman sun is located at 60 degrees of the yellow meridian, and the solar term will be celebrated on May 20-22.

The awn seed sun is located at 75 degrees of the yellow meridian and intersects on June 5-7.

The summer solstice sun is located at 90 degrees of the yellow meridian, which intersects with June 2 1-22.

The light summer sun is located at 105 degrees, July 6-8.

In summer, the sun is located at 120 degrees, and the solar term passes on July 22-24.

autumn

The sun in beginning of autumn is located at longitude 135 degrees, and the solar term will pass on August 7-9.

In summer, the sun is located at 150 degrees, and the solar term passes on August 22-24.

The Millennium sun is located at longitude 165 degrees, and will pass the solar term on September 7-9.

The autumnal equinox sun is located at 180 degrees, and will pass the solar term on September 22-24.

The cold dew sun is located at the node of longitude 195 degrees and 65438+1October 8-9.

The sun in the first frost is located at longitude 2 10, and the node is 65438+1October 23-24.

winter

The sun in early winter is located at 225 degrees of the yellow meridian and intersects with165438+1October 7-8.

Xiaoxue Sun is located at the intersection of165438+1October 22 -23 at longitude 240 degrees.

The snowy day is located at 255 degrees of the yellow meridian, and the node is 65438+February 6-8.

In winter, the solstice sun is located at 270 degrees of the yellow meridian and intersects with 65438+February 2 1-23.

The slight cold sun is located at 285 degrees of the yellow meridian, and the node is 65438+1October 5-7.

The severe cold day is located at 300 degrees of the Yellow Meridian and intersects with 65438+1October 20th -2 1.

Solar term date speed algorithm: general birthday formula -[y× d+c]-l

Y= year, D=0.2422, L= leap year, and C depends on solar terms and year.

In this century, the C value of beginning of spring is 4.475, and the beginning of spring date of 20 17 is as follows:

[20 17×0.2422+4.475]-[20 17/4- 15]=492-489=3

So the beginning of spring date of 20 17 is February 3rd, as simple as that.