Sun Earth Relationship
Kids learn about the science of the seasons - winter, spring, summer, and Seasons are caused because of the Earth's changing relationship to the Sun. tilt changes to where the North Pole is pointing away from the Sun producing winter. Many people believe that Earth is closer to the sun in the summer and that is why it is hotter. And, likewise, they some of each. Earth has seasons because its axis doesn't stand up straight. for the seasons. View of Earth in relation to sun. That's because the Earth tilts in relation to the sun. That is what creates the differences in the seasons and the annual warming and cooling All this does not explain why our planet maintains its relatively warm, life-sustaining.
The rotation of the earth about its axis also causes the day and night phenomenon. The length of the day and night depends on the time of the year and the latitude of the location. For places in the northern hemisphere, the shortest solar day occurs around December 21 winter solstice and the longest solar day occurs around June 21 summer solstice. In theory, during the time of the equinox, the length of the day should be equal to the length of the night. The average time the earth takes to move around the sun in approximately days.
This path that the earth takes to revolve around the sun is called the elliptical path. When the sun is moving down from above the celestial equator, crosses it, then moves below it, that point of intersection between the two planes is when the Autumnal Equinox occurs.
This usually happens around the 22nd of September. When the Sun moves up from below the celestial equator to above it, the point of intersection between the sun and the celestial equator is when Spring Vernal Equinox occurs.
It usually happens around the 21st of March.
During the equinoxes, all parts of the Earth experiences 12 hours of day and night and that is how equinox gets it name as equinox means equal night. At winter solstice Decthe North Pole is inclined directly away from the sun.
At this point it will be at declination This cycle will carry on, creating the seasons that we experience on earth. The earth is tilted At the summer solstice which occurs around 21st of June, the North Pole is pointing towards the sun at an angle of Therefore the apparent declination of the sun is positive At the Winter solstice which occurs around 21st December, the North Pole is pointing away from the sun at an angle of Therefore the apparent declination of the sun is negative Why does our tilt matter?
The tilt has two major effects: For half of the year the Earth is tilted such that the North Pole is more pointed towards the Sun. For the other half the South Pole is pointed at the Sun. When the North Pole is angled toward the Sun, the days on the northern part of the planet north of the equator get more sunlight or longer days and shorter nights.
With longer days the northern hemisphere heats up and gets summer. As the year progresses, the Earth's tilt changes to where the North Pole is pointing away from the Sun producing winter. For this reason, seasons north of the Equator are the opposite of seasons south of the Equator.
EARTH/SUN RELATIONSHIPS | Danny M Vaughn, Ph.D., CMS - fim-mdu.info
We talked about the length of the day changing, but the angle of the Sun changes as well. In summer the sunlight shines more directly on the earth giving more energy to the Earth's surface and heating it up. During the winter the sunlight hits the Earth at an angle. This gives less energy and doesn't heat the Earth as much. It's just the opposite in the Southern Hemisphere where the longest day is December 21st and the longest night is June 21st.
There are two days a year where the day and night is exactly the same. These are September 22nd and March 21st. Activities Take a ten question quiz about this page. Sun Angle and Seasons - See how the angle of the Sun effects the temperature and causes the seasons.