by The northern hemisphere has reached its peak and marks the summer solstice – the longest day of the year and the official start of the astronomical summer. Conversely, it means the shortest day and the beginning of winter for those in the southern hemisphere.
The term “this heavenly event marks the highest annual arc in the sun in the sky. Then it begins its gradual withdrawal, which leads to increasing shorter days until the end of December.
Civilizations have observed and celebrated the solstice for thousands of years, which constructed monuments such as Stonehenge, which were geared towards the Sunday in these crucial moments. Understanding what develops in heaven requires a look at the earth’s orbital mechanics.
When our planets around the sun, it is on a inclined axis. During most of the year, this tendency means that sunlight and heat are distributed unevenly between the northern and southern hemisphere. Sunlead occurs when this axial tendency is most extreme, which leads to a most significant inequality between day and night lengths. During the summer solstice of the northern hemisphere, the upper half of the earth is inclined directly towards the sun and creates the longest day and the shortest night of the year. Conversely, the winter solstice is refused from the sun and leads to the shortest day and the longest night.
In contrast to the solstice, Equinoxe periods in which the earth’s axis and its orbit are aligned in such a way that both hemispheres receive almost the same amount of sunlight. The word “Equinox” itself comes from Latin words “equal” and “night”. Day and night are almost identical day and night. The northern hemisphere is experienced between March 19 and 21 and autumn (autumn) Equinox between September 21 and 24 September. At the equator, the sun is over the head during an alike at noon, and both the north and southern poles are illuminated by sunshine at the same time.
It is also important to distinguish between astronomical and meteorological seasons. While the astronomical seasons are defined by the exact movements of the earth around the sun, the meteorological seasons are based on the annual temperature cycles and divide the year into fixed three -month periods. Spring begins in this calendar on March 1, summer on June 1st, autumn on September 1st and Winter on December 1st.
