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In an ellipse, as described by Kepler's laws. Though this is usually applied to the planet, it is more accurate to apply it to the barycenter of planet + moons.
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Is the center of mass between Earth and the sun exactly half way between the two?
Yes, the center of mass for the earth-sun orbit lies inside the sun. This is the barycenter, by the way. And because the sun is so massive relative to earth, the barycenter of earth's orbit about our local star is not that far from the center of the sun and is actually inside of it.
Do moons and asteroids orbit the sun?
Asteroids orbit the sun. Moons orbit planets and planets orbit the sun. So you could say the moons orbit the sun. However, moons are kept in their orbits by the gravity of their planet and planets are kept in orbit by the gravity of the sun. So in that sense, moons do not orbit the sun.
How long does it take Neptune to complete its orbit?
Neptune has completed MANY orbits around the Sun since its formation. However, an interesting note is that since its "discovery" in September of 1846, it has not yet completed one orbit, which takes 164.8 Earth years. This will occur in June, 2011.
Does the sun orbit Mars?
All planets orbit the Sun.
Why do the solar system orbit around the sun?
The orbit the Sun because they are attracted by the Sun.
Is the center of mass between Earth and the sun exactly half way between the two?
Yes, the center of mass for the earth-sun orbit lies inside the sun. This is the barycenter, by the way. And because the sun is so massive relative to earth, the barycenter of earth's orbit about our local star is not that far from the center of the sun and is actually inside of it.
Can a star's wobble become so big that it seems to orbit around nothing?
Yes. That point of "nothing" between the star and the object causing the orbit is called the barycenter, the common center of mass of the two objects. Such as case exists in our solar system; the barycenter between the sun and Jupiter lies just outside of the sun. The case is even more pronounced in binary star systems, which two stars orbit their common center of mass.
Is it likely that the sun will orbit the earth?
Technically, no object orbits the other; instead, they orbit their mutual "barycenter", which is a balance between the masses of the two objects. For example, the Earth and the Moon both orbit their "barycenter", which is still within the volume of the Earth. (That's why the Earth is the planet and the Moon is the satellite, instead of us being co-planets.) Because the Sun is SO massive and the planets so relatively puny, the barycenter of the Sun-Earth system is pretty much at the center of the Sun; the Sun itself wobbles an incredibly tiny amount. But that star-planet wobble is sometimes enough for us to detect it; that's how the first dozen or so extra-solar planets were discovered, because of the gravitational wobble caused by the planet!
Does the moon revolve round the planets?
Moons orbit planets Or rather moons and planets orbit their barycenter.
Does the sun move in an elliptical orbit or does the moon?
Both the Earth and the Moon move in the universe. Earth and Moon actually orbit their common center of mass. Together, the Earth and the Moon orbit the Sun, which itself is moving in the universe.
How many times does the moon orbit the sun?
No one knows because no one was alive at the beginning so we can only guess how old the earth is. the moon goes around the earth once a day. the dinosaurs were born trillions of years ago, do the math!
What is a barycenter?
That's the center of mass of two or more objects that orbit each other.
Does the earth move around the sun the moon or mars?
The earth moves around the sun it is yearly orbit of the sun. The earth and the moon actually move around each other, since they both orbit what is called the 'barycenter', the center of gravity of the earth-moon system. The barycenter is beneath the earth's surface, and moves in such a way that it is always in line with the moon's center of gravity and the earth's. This gives earth a slight wobble in its yearly orbit of the sun. The earth does not move around Mars.
When two objects of unequal mass orbit where is the center of the mass?
The barycenter. The barycenter of the Earth - Moon system is inside the Earth about 2000 kilometers beneath the surface. The Barycenter of the Charon - Pluto system is in space between those celestial bodies.
Why is the Moon's gravity has greater effect on earth's ocean tides than the sun's gravity?
This is true because the moon is much closer to earth. Gravitational attraction is in inverse proportion to the square of the distance between two point masses like the sun and earth. Even though the sun is huge, it is also very far away. The earth and moon actually orbit each other; they orbit a common point called the barycenter. The barycenter is within the body of the earth, and it moves in such a way that it is always between the centers of the earth and moon.
Does the sun orbit inside the solar system I know that it rotates in its axis every 26 earth days?
The sun really doesn't orbit inside the solar system; all of the other objects in the solar system orbit around the sun. In a strange way, you can think of the sun and other objects orbiting around each other, in the sense that the earth and moon orbit a mutual center of gravity called the barycenter. But the sun is so much more massive than everything else combined that this idea isn't very useful.
How do planets orbit according to law?
The planets and the Sun orbit around each others common center of gravity referred to as the barycenter. Think of the planets as free falling objects. The Earth, as all of the other planets, are actually falling toward the center of the Sun's gravity. That is to say, for every one foot they fall toward the Sun, the Sun moves one foot out of the way.
