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How is a unit of measure refers to the average distance of the Earth to the Sun?
It's a mathematical convience, it COULD be measured from anywhere. However, it's simpler to consider all the mass of the Earth as a dot located at the Earth's core. It is false, but depending on the problem you're trying to solve, the errors are unually small.
According to Kepler's 2nd Law each 30 day period a planet will?
According to Kepler's 2nd Law, as a planet moves around its orbit, it sweeps out equal areas in equal times. This means that a planet will move faster when it is closer to the sun (perihelion) and slower when it is farther away (aphelion) to ensure this law is followed.
How long does it take the earth to move round the sun in one day?
Are you sure this question is correct? It takes the Earth one day "to move round the sun in one day"
When is Earth the closest to the sun during which season in the southern hemisphere?
Earth is closest to the sun during the southern hemisphere's summer, which is around early January. This phenomenon is known as perihelion and occurs when Earth reaches its closest point to the sun in its elliptical orbit.
What term is used for moon at apogee and perigee position?
It means in Latin-Greek, "Closest to the Earth" and refers to a position in an orbit. Apogee means "Farthest from the Earth"Another answerAccording to the Free Dictionary by Farlex, "The point in any orbit nearest to the body being orbited."
Does earth move faster in its orbit near perihelion (January) or near aphelion (July)?
In elliptical orbits, all bodies travel faster when nearest the "primary"; in this case, the Sun. Since the Earth's orbit isn't very eccentric (meaning that it is almost but not quite circular) the difference between perihelion velocity and aphelion velocity isn't very great.
Do all planets have a perihelion and an aphelion. What are they?
Yes, All of the planets in our Solar System move around the Sun in elliptical orbits. An ellipse is a shape that can be thought of as a "stretched out" circle or an oval. The Sun is not at the center of the ellipse, as it would be if the orbit were circular. Instead, the Sun is at one of two points called "foci" (which is the plural form of "focus") that are offset from the center. This means that each planet moves closer towards and further away from the Sun during the course of each orbit. The point in the orbit where the planet is closest to the Sun is called "perihelion". The point where the planet is furthest from the Sun is called "aphelion".
In what month do the earth move faster around the sun December or June?
The Earth moves faster around the sun in January when it is closest to the sun in its orbit (perihelion) and slower in July when it is farthest from the sun (aphelion). Therefore, it moves faster in December than in June.
Does the earth move closer to the sun every year?
Yes and no. The Earth does get closer to the Sun every year as it approaches perihelion, 147,098,290 km, around January 4th, but then it recedes as it approaches aphelion, 152,098,232 km, around July 4th.
At which point in its orbit does earth move slowest?
Any object in a closed orbit moves slowest when it's at the point farthest away from the central body.If the central body happens to be the sun, then the point in the orbit that's farthest from the sun iscalled "aphelion". The earth passes aphelion on July 3 or 4.
What season does the sun moves slower?
Complicated question. The sun doesn't move, as such, but it kind of wobbles a bit as the planets revolve around it. Only Jupiter has the sun wobble outside of it's own surface, so the wobble isn't much, either. I can assume that you may be referring to the earth's movement around the sun. In that case the earth is closer to the sun (perihelion) when it is winter in the northern latitudes, so it would move quicker, slower when the earth is at aphelion, in the northern hemisphere's summer.
Does a comet move faster in time in the perihelion?
Yes.
How is a unit of measure refers to the average distance of the Earth to the Sun?
It's a mathematical convience, it COULD be measured from anywhere. However, it's simpler to consider all the mass of the Earth as a dot located at the Earth's core. It is false, but depending on the problem you're trying to solve, the errors are unually small.
How far is mars to earth?
This question isn't quite as "easy" as it may initially seem. Here's why. The earth and Mars are in orbit around the sun. At times, the earth, Mars and the sun line up. But they can all line up with earth and Mars on the same side of the sun, or they can line up with the earth and Mars on opposite sides of the sun. Yeah, that's right. In the first case, they're sorta close, and in the other, they're a long, long way apart. There's more. The earth and Mars don't move in a circle around the sun. Their orbits are slightly eliptical. This means that at times they'll be a little closer to the sun than at other times. When they're farthest away from the sun, we call that aphelion, and when they're closest to the sun, we call that perihelion. Let's dump the numbers on you now that we've sorted out the basics: Mars: Aphelion - 249,209,300 km; and Perihelion - 206,669,000 km Earth: Aphelion - 152,097,701 km; and Perihelion - 147,098,074 km The last little slice of datum we need lay out is that they aren't both nessissarily at aphelion or perihelion when they are lined up. But let's just say that they are for the sake of this exercise. Just for fun. We'd have to crunch some serious numbers to find out actually when this would occur, by the way. Some serious numbers. It ain't often. If earth and Mars are lined up on opposite sides of the sun and both are at aphelion, then they're about 401,307,001 km apart. That's about 249,360,610 miles. This represents the maximumdistance they can be from each other. But you needed a minimum. Let's work on that. With the two planets on the same side of the sun, we need to "maximize the closeness" in this case. To do this, we need Mars, which is farther out from the sun than earth, to be at its closest point to the sun, or perihelion. We'll need earth, which orbits "inside" Mars, to be as far from the sun as it gets, or at aphelion. This geometry will put the red planet and earth closest to each other. This distance will be about 54,571,299 km, or about 33,909,033 miles. And that's about as near as these two planets get. Links to the Wikipedia articles on both of these two neighboring bodies can be found below.
When does the earth reach its greatest orbital speed?
The earth is very close to being a sphere, so its circumference is basically the same all around. But because of a bit of a bulge around its middle, the equator is the longest of any circumference you could measure of the earth. Because of the bulge, the earth is really an oblate spheroid.
Why is Earths orbital velocity slowest on July 5?
Earth's orbital velocity is slowest on July 5 because that is when Earth is at aphelion, its farthest point from the Sun in its elliptical orbit. At this point, the gravitational pull from the Sun is weaker, causing Earth to move more slowly in its orbit.
How much closer is the sun to earth because of it tilt in summer rather than winter?
The earth is at perihelion (its closest approach to the sun) in early January, a few days after the northern hemisphere's winter solstice. This is summer in the southern hemisphere. Aphelion, when earth is farthest from the sun, happens in early July, a few days after the summer solstice in the north. This is winter in the southern hemisphere. We in the north can have a little trouble initially wrapping our brains around this, because it is natural for anyone to think that summer occurs when we are closest to the sun. This is true for our friends in the south, not for us. The seasons have much more to do with the tilt in the earth's axis than with proximity to the sun. That's why we northerners can experience winter at the time that the earth is actually closer to the sun.
