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Because Earth does not orbit the Sun in a perfect circle. If you were to look at the Earth's orbit, it would look like an oval. This is called an elliptical orbit. When the Earth is closer to the Sun (called perihelion), it goes faster than when it is farther (aphelion).
Also, the orbit of the planets will cause a slight wobble in the sun, so the Sun actually moves in accordance to the planets, however this is a very small wobble, and the proper answer to your question would be in the first paragraph.
This is a very small amount of info, and I would suggest you research more. =)
What else can I help you with?
When the distance between the earth and the sun is minimum?
The minimum distance between the Earth and the Sun occurs during perihelion, which is when the Earth is closest to the Sun in its elliptical orbit. This usually happens around January 3rd of each year.
How does the distance on saturn compare to the distance of earth?
The distance between Saturn and the Earth varies as both planets travel around the Sun in elliptical orbits. On average, Saturn is about 1.2 billion kilometers away from Earth. This distance can change due to their orbits and can be as close as about 1.2 billion kilometers and as far as about 1.7 billion kilometers.
Is equal to the distance between the sun and the earth?
One "Astronomical Unit" is (more or less) the average distance between the Sun and Earth.
Is the sun gravitational pull on the earth the same at all seasons of the year?
Not at all. It depends up on Mass and the distance . Here Mass is constant . but distance is not .The distance between Earth and Sun is not always the same in an year.because of the elliptical orbit of the Earth.
Which of these would cause the gravitational force between earth and the sun to decrease?
An increase in the distance between Earth and the Sun would cause the gravitational force between them to decrease. Conversely, a decrease in the mass of either the Earth or the Sun would also result in a decrease in the gravitational force between them.
What between earth and the sun changes during the year?
distance
What is the distance between Earth from the sun during aphelion?
152,098,232 kilometers.
Why the distance of the earth and the sun changing constantly during its revolution?
The Earth's orbit around the Sun is elliptical, not a perfect circle. This means that the distance between the Sun and Earth is constantly altering during the orbit of the Earth.
When the distance between the earth and the sun is minimum?
The minimum distance between the Earth and the Sun occurs during perihelion, which is when the Earth is closest to the Sun in its elliptical orbit. This usually happens around January 3rd of each year.
Distance between the earth and the sun is the gretest during?
... the first week of July.
Can changes in distance between the Earth and the Sun explain seasons?
Not really, the change in distance produces a small effect compared to the differences between summer and winter caused by the tilt of the Earth's axis.
How does the distance between the earth and the moon change every year?
The moon gets closer and further to the earth during it's orbit, throughout the month. It is also slowly moving away from the earth by a few cm every year.
The distance between earth sun is the greastest during?
Aphelion, which generally occurs in July.
Why does the shape of the tidal bulge change during the course of the month?
As the orbits of the Moon about the Earth and the Earth around the Sun are not circular, the distance to each of these bodies varies. Since the strength of gravitational attraction is determined, in part, by the distance between the objects, as the distances change so too does the strength of the tide-raising forces.
Why does the distance between the earth and moon change?
It varies, since the moons orbit around earth is not perfectly circular and central.
During which season in the northern hemisphere does the earth reach its greatest distance from the sun?
The Earth reaches its greatest distance from the Sun during the summer season in the Northern Hemisphere. Though it may seem counterintuitive, the distance between the Earth and the Sun varies due to the elliptical shape of Earth's orbit, with the Earth being farthest from the Sun during the summer months.
What is the distance between the earth and sun in 2008?
The same as other years. The distance doesn't change much from one year to another.
