What is the shortest day and the shortest night in 2021-2022: dates, days of summer and winter solstice. What date is the day of the spring and autumn equinox in 2021-2022: Date. How many days the equinox and solstice last in 2021-2022 last: Dates

This article indicates the dates of the equinox and solstice in 2021-2022.

The sun affects the Earth. The fiery planet radiates light streams, and since our planet rotates around its axis, it turns out day and night.

• The fiery planet brings warmth to Earth, which, as a result of the movement of our planet around the heavenly luminary, causes a change of seasons.
• Days of the equinox and solstice speak of astronomical seasonality.
• What are these days and when do they come? How does the day decrease and increase in these periods? You will find answers to these and other questions in this article.

What are the days of spring and autumn equinox: definition

Summer solstice

An equinox is an astronomical event. In such a period, the fiery planet passes through the heavenly equator. If you observe from the cosmic distance, then these days the Line of the Svetorzel (Terminator) goes clearly along the poles and it is located perpendicular to the earth's equator.

• People were looking forward to such days.
• When the holiday came, everyone walked noisily during this period, and many countries even considered it the beginning of the New Year.
• Among the countries professing Islam, this holiday was called Navruz, and the date of Easter among Christians was counted from the day of the spring equinox.

Spring equinox - March 20, 2022, autumn - September 22, 2021.

• Such a day is a unique natural manifestation. The center of the solar planet crosses the equator in the sky.
• On this day, our planet is inclined in such a way that the flow of rays goes right in the direction of the equator. The sun moves from the southern hemisphere to the North. Almost throughout the Earth, the day is equal to the night.
• On the day of the autumn equinox, the sun passes from the northern hemisphere to the southern. Accordingly, in this hemisphere, March 20 is an autumn equinox, and on September 22 - spring.
• The time period between two identical equinoxes is called a tropical year and it is equal to 365,2422 days.

Due to the fact that the value is inaccurate, and the approximate, equality between day and night every year falls for different times of the day, moving 6 hours in advance. After 4 years, 1 day is added and this year is called a leap.

The position of the sun in the days of the equinox

The sun in the days of the equinox

The days of the equinox are a kind of limit of the movement of the fiery planet from the northern hemisphere to the southern - in the fall, and in the spring, on the contrary. This is characteristic of the territory of our planet, which is located above the equatorial zone. These days, the heavenly luminary rises clearly in the east and hides beyond the horizon in the West. This will be the position of the “bright” planet on the days when day and night are compared in its time - in the fall and spring.

But this phenomenon will definitely be observed in the area in the region of 23.5 ° north or southern latitude. In other areas there may be a small movement towards the north or south.

Spring equinox in 2022: date, longitude of the day

The vernal equinox

Spring equinox is an important period in the annual seasonality.

• This day is considered the beginning of astronomical spring. Our ancestors and modern people are looking forward to this period - warm days after winter and cold weather are coming, and daylight hours are now beginning to be “added”.
• This date is not considered fixed and in every 365 days it can be in a different time period.
• The day of the spring equinox in 2022 is March 20 at 15-24 in Moscow.

At this time, bright time of the day is equal to dark. Then every day the day begins to increase by 5 minutes, and during the summer solstice, the day will be the longest in the year.

Autumn equinox Day in 2021: date, longitude of the day

During the autumn equinox, astronomical autumn begins.

• These days remind of the imminent arrival of winter colds.
• Autumn equinox Day in 2021 - September 22.
  In the time of Moscow, it is 22-21.
• Before this period, the day was “reduced” and now it is again equal to the dark time of the day.
• Then, until the day of the winter solstice, the day will continue to decrease until the longest night of the year comes.

On the day of the autumn equinox for the second time a year, when the day is equal to the night.

What are the days of summer and winter solstice: definition

Solstice - translated from Latin "Solstitium" means "The sun stopped".

In June 2022 on the 21st The slope of the axis of the rotation of our planet from the North Pole in relation to the Sun has the smallest meaning.

• In this period, the sun shines into the northern hemisphere.
• At that moment, the longest day and the shortest night in the northern hemisphere is the summer solstice, which marks the beginning of the astronomical summer.
• In the southern hemisphere on this day, the most time is the longest night and the shortest day. On this hemisphere on such a day is winter solstice.

In December 2021 - 21, The sun in the northern hemisphere shines on the southern tropic.

• At the same time, the axis of the rotation of our planet from the North Pole in the direction of the Sun takes the greatest meaning.
• On this day in the northern hemisphere, the shortest day and the longest night is the winter solstice.
• In the southern hemisphere, on the contrary, the summer solstice.
• Due to the shift in the leap years of the days of solstice, it can be different, but this difference is no more than 1 day.

The position of the sun in the days of the solstice

The periods between the two solstices are the time when the sun shifts to the side above the horizon and below this line. The movement of the heavenly luminary seems to be a trajectory for a sinusoid. In winter, it drops below, in the summer - rises above. The angle between the sun and the horizon on our planet is:

• In June - 90 degrees
• In December - 270 degrees

A couple of days before and after the solstice period, the heavenly luminary “freezes” at one point at 12 o’clock in the afternoon. But you will not be able to observe him right above your head. You need to go above the equator at 23.5 degrees in the summer and similarly to 23.5 degrees of south latitude in winter. So you will see the sun directly vertically over yourself.

The summer solstice in 2021: longitude of the day, the shortest night

The date of the summer solstice is the time when the height of the lifting of the sun is the highest. In 2022, this date falls on June 21. During this period - the longest day (17.5 hours) and the shortest night of the year (6.5 hours).

The date of the winter solstice in 2021: longitude of the day, the shortest day

The ancient Slavs called this day the day of renewal and birth of the sun. Some peoples even celebrated the New Year on the day of the winter solstice. The date of the winter solstice in 2021: December 21 at 18-59 in Moscow. During this period, the longest night (about 17 hours) and the shortest day (about 7 hours).

How the day after the summer solstice decreases: schedule

The schedule of reduction of the day after the summer solstice

As mentioned above, the day is reduced after the summer solstice every day by 5 minutes. Above on the graph, the longitude of the day is visible in the watch, it is indicated in green. The permanent day is marked with brown color, and night with white.

How the day after the winter solstice increases: schedule

Schedule of the day after the winter solstice

Analem - a curve line in the form of an eight. It is written out by the sun in the sky during the calendar year. To draw such a curve, you need to fix the heavenly luminary at the same time. Thanks to such analma, you can see how the sun moves - rises and falls. After the day of the winter solstice, the day increases every day by 1 minute.

Days of equinox and solstice: rites and magic

Days of equinox and solstice: rites and magic

Astrologers assure that the days of solstice are the most dangerous period of the year. The energy of these days is weakened and can affect the internal state of a person. But folk signs claim the opposite. The days of equinoxes are not so complex, but they also have magical power.

• On the days of the summer solstice Rites for love, fulfillment of desires, to attract money and changes in life are held. Also during this period, amulets are created.
• Winter solstice - Time for the birth of the young sun. The girls wondered on the narrowed, and the old people - on the crop. People changed into animals to scare away the dark forces and jumped over the fire to get rid of the insults and envy of evil people.
• Day of spring equinox endowed with special magical power. Nature wakes up from winter sleep. During this period, Shrovetide usually falls. People baked pancakes, attracting a good harvest, health and prosperity in their homes.
• Autumn equinox day - The end of the harvest. People held different games, drove round dances, sang laudatory songs to the gods and remembered their ancestors. These days were special: everyone walked and rejoiced at a rich harvest.

Thanks to magical rites, you can strengthen your energy and avoid the negative influence of the solar planet in these difficult periods. Meet this magical period with a good mood so as not to strengthen the already complex energy of such days. Nobody should disturb the internal state of a person, even such changes in nature as an equivalent and solstice.

Video: Solstice and equinox