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the Earth's orbit around the sun is elliptical so Earth is farther away from the sun in some places (winter) and closer in some places (summer). also Earth's axis tilt causes light rays to spread and our rotation around our axis causes the darkness when the part of the Earth turns away from the sun.
Wiki User
∙ 12y ago
Wiki User
∙ 10y agoStaying true to the question the way it's written, it's the other way around - it's the seasons that affect the length of day and night. The hemisphere whose pole points towards the sun gets summer and longer days and the hemisphere whose pole points away from the sun gets winter.
And the further away from the equator the more pronounced the difference becomes, with the poles having continuous night during winter and continuous day during summer.
It turns out that the elliptical orbit of the Earth has little effect on the seasons. Instead, it is the23.45-degree tilt of the planet's rotational axis that causes us to have winter and summer.
The diagram below demonstrates what happens.
In this diagram, you can see the axis of rotation and the equator. The Northern Hemisphere (at the top) is currently experiencing winter, and the Southern Hemisphere is experiencing summer. By looking at how sunlight is landing on the planet in the diagram, you can clearly see two things:
- The Southern Hemisphere is getting about three times as much sunlight as the Northern Hemisphere.
- The North Pole is getting zero sunlight, which is why it experiences 24 hours of darkness in January.
That huge difference in the amount of sunlight reaching the ground in the different hemispheres is what causes the seasons.
Wiki User
∙ 8y agoThe Earth's equator does not lie in the plane of the Earth's orbit, which means the north-south polar axis is tilted. The axis always stays in the same direction (relative to the stars) and this means that sometimes your part of the Earth is tilted towards the Sun. When this happens you get more than 12 hours of sunlight each day. Six months later you get less than 12 hours.
People near the Equator have about 12 hours of sunlight each day with little variation.
Wiki User
∙ 15y agoIt varys becausethe earth is spinning and facing the sun then it turn and we only get half the sun . son we like igloos!
Wiki User
∙ 14y agoThe length of daytime changes with each season becaus the amounts of energy that the Northern Hemisphere and the Southern Hemisphere receive from the sun change over the course of a yeat
Wiki User
∙ 13y agoBecause the Earth is tilted on its axis which means the northern hemisphere faces the sun longer which makes day time long.
Wiki User
∙ 12y agoLenght of daylight changes daily.
Wiki User
∙ 9y agoBecause of the earths axial tilt
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How do seasons affect plants flowering in the spring?
The seasons affect flowering plants by giving them a time to rest in fall and winter with colder temperatures and less light. In the spring, the amount of daylight increases as do temperatures. The Sun heats the ground, the seeds in the ground, and the plants, so they produce the chemicals and energy they need to grow.
Can you predict seasons?
The seasons are already figured out . . . the seasons change on the equinoxes (days and nights of equal length) and on the soltices (days and nights are the most different in length)
Which factor causes the greatest effect on the seasons on the earth?
The time of daylight is shorter in winter .
What is the length of daylight at a location related to?
Latitude and time of year
What is the length of daylight and nightime of Mercury?
55.736
Does the sun's position in the sky affect the length of daylight?
Does the sun's position in the sky affect the length of daylight ?
How does the length of daytime and night time affects the seasons?
The length of daylight or nighttime hours does not affect the seasons, but the seasons affect the length of daytime and nighttime hours. During the summer, the earth is tilted more toward the sun, resulting in longer daytime hours. During the winter months, the earth is tilted away from the sun, resulting in shorter days and longer nights.
How would the length of the seasons on mars affect people?
Compared to the planet Earth, it is always winter on Mars. The length of the seasons is not likely to affect people. The lack of a breathable atmosphere will be a much more pressing concern.
When do the winter Daylight Saving Time begin in Hawaii?
Hawaii does not do Daylight Saving Time- it is so far South, that changing seasons makes little change to length of day/night.
What causes the varying length of daylight through the year?
The Earth tilting on its axis as it orbits the Sun, causes the changing of the seasons in the northern and southern hemispheres. This also alters the lengths of the darkness and daylight.
What causes that the varying length of daylight through the year?
The Earth tilting on its axis as it orbits the Sun, causes the changing of the seasons in the northern and southern hemispheres. This also alters the lengths of the darkness and daylight.
What factors would affect the length of the day?
The length of the day would change if either the rotational speed of the the planet or the orbital distance from the sun changed. However, if you mean what factors affect the length of daylight, then that is different.
How does length of daylight effect sabbath?
Although the length of daylight may influence the beginning and ending time of the Sabbath, it doesn't affect its total length, since the Sabbath lasts nominally one day, measured from one sunset to the next sunset.
How can the amount of time in which the sun can warm the earth affect the seasons?
When there are more hours of daylight, the sun has more time to heat the Earth, and thus it is summer.
What is the length of daylight associated with the equinox at the equator and the poles?
The length of daylight is 12 hours at both the equator and the poles.
How does weather effects seasons?
Weather doesn't AFFECT (not effect) seasons, seasons AFFECT weather.
Which location has the least variation in the length of daylight hours?
All places that are on the Equator have the least variation in the length of daylight hours.
