It's actually possible that our entire cosmos has a seasonality to it—a time to expand, and a time to contract.Sep 13, 2021.
Seasons are caused by the fact that the Earth is tilted on its axis by 23.5\xb0.
The tilt's orientation with respect to space does not change during the year; thus, the Northen Hemisphere is tilted toward the sun in June and away from the sun in December, as illustrated in the graphic below..
The earth's spin axis is tilted with respect to its orbital plane.
This is what causes the seasons.
When the earth's axis points towards the sun, it is summer for that hemisphere.
When the earth's axis points away, winter can be expected..
Earth's tilted axis causes the seasons.
Throughout the year, different parts of Earth receive the Sun's most direct rays.
So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere.
And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere..
Therefore, the cycle of seasons on Mars is similar to Earth's—Mars also experiences the four seasons of summer, autumn, winter, and spring.
When it is summer in the northern hemisphere of Mars, it is winter in the southern hemisphere, and vice versa..
The four seasons—spring, summer, fall, and winter—follow one another regularly.
Each has its own light, temperature, and weather patterns that repeat yearly..
The four seasons—spring, summer, fall, and winter—follow one another regularly.
Each has its own light, temperature, and weather patterns that repeat yearly.
In the Northern Hemisphere, winter generally begins on December 21 or 22.
This is the winter solstice, the day of the year with the shortest period of daylight..
The four seasons—spring, summer, fall, and winter—follow one another regularly.
Each has its own light, temperature, and weather patterns that repeat yearly.
In the Northern Hemisphere, winter generally begins on December 21 or 22.
This is the winter solstice, the day of the year with the shortest period of daylight..
The Ecliptic and Celestial Equator
Since Earth's axis of rotation is inclined 23.4 degrees, the Sun will be in the northern sky in the spring and summer and the southern sky during the fall and winter.
Essentially, this is what causes this cycle to occur..
The earth's spin axis is tilted with respect to its orbital plane.
This is what causes the seasons.
When the earth's axis points towards the sun, it is summer for that hemisphere.
When the earth's axis points away, winter can be expected..
Because the timings of the equinoxes and solstices change each year, the length of astronomical seasons within a year and between years also vary
According to the meteorological definition, the seasons begin on the first day of the months that include the equinoxes and solstices
The astronomical definition uses the dates of equinoxes and solstices to mark the beginning and end of the seasons: Spring begins on the spring equinox; Summer begins on the summer solstice; Fall (autumn) begins on the fall equinox; and Winter begins on the winter solstice
The seasons in the tropics are not marked by temperature but by the combination of trade winds taking water from the oceans and creating seasonal rains called monsoons over the eastern coasts
