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If you mean in our Solar System: All of them. All are elliptical, but all are very close to a circle.
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What planets orbit is so eccentric?
All the planets in the solar system have very low eccentric orbits.
Why the planets not colliding each other?
The planets in the solar system are in well-spaced out, stable, roughly circular orbits - they don't come close enough to collide with each other. Asteroids and comets, however, are on more elliptical, unstable orbits that often cross the orbits of the planets, and sometimes planets collide with asteroids and comets.
Who said the planets traveled in oval orbits?
Everyone from the ancient Greeks on knew that the planets move in oval-type orbits, which were simulated by systems of circles. Later, after years of hard work, Johannes Kepler published the laws of planetary motion in 1618 which showed that the orbits are more accurately represented by ellipses, and each planet has its own ellipse with the Sun at one focus. Ellipses make very good approximations to the actual orbits of planets, but the gravitational effects of the other planets, especially Jupiter, mean that the planets depart slightly from true elliptical orbits. That is taken care of by regular updates to the orbital elements of the planets, which are numbers which describe the sizes and shapes, orientation and inclination of all the planets' elliptical orbits.
What two planets have asteroid belts?
Mars and Venus. But the atmosphere of Venus is many many times denser. Also, all of the outer planets have similar atmospheres. Jupiter and Saturn are a very similar pair and Uranus and Neptune are also two that are very similar.
Why all bodies of solar system similar?
The planets or other cosmic objects are very different, not similar.
Why are dwarf planets different?
Dwarf planets are very small and usually have much more elliptical orbits than normal planets.
What planets orbit is so eccentric?
All the planets in the solar system have very low eccentric orbits.
Is it possible for one of the planets to break away from gravitational pull of the sun?
No the chances of it happening are very very slim indeed. The planets are all in very stable orbits.
Suns gravity keeps what in an oval shaped orbit?
The sun does not "keep" the planets in an ellipse orbit but only that it is so because the odds of a celestial body having a perfectly circular orbit are very small. But yes all the planets do have ellipticall orbits of varying eccintricities. There are laws that govern planetary orbits devised by Johannes Kepler. For more info look up Johannes Kelper's Laws of Plantery Orbits.
Why the planets not colliding each other?
The planets in the solar system are in well-spaced out, stable, roughly circular orbits - they don't come close enough to collide with each other. Asteroids and comets, however, are on more elliptical, unstable orbits that often cross the orbits of the planets, and sometimes planets collide with asteroids and comets.
How are the inner planets similar to the sun?
They are not very similar at all.
What type of path does an object in orbit make?
An ellipse, or egg-shaped. Orbits are not very egg-shaped, though . . . they are almost circles.
What is the shape of their path of revolution?
If you mean planets, the orbits are technically ellipses, but very close to circular.
If the planets' orbits were circular would their distance from the sun always be the same?
Yes. However, the orbits of all planets are elliptical. Some planets, like Earth, have a very low "eccentricity", which is a measure of how non-circular they are. Earth's orbit is not quite circular, but fairly close. Other planets, like Mars, have more eccentric orbits, and their perihelion and aphelion distances are substantially different.
Planets detected via Doppler Technique have been mostly?
Jupiter-mass, in very close orbits.
Who said the planets traveled in oval orbits?
Everyone from the ancient Greeks on knew that the planets move in oval-type orbits, which were simulated by systems of circles. Later, after years of hard work, Johannes Kepler published the laws of planetary motion in 1618 which showed that the orbits are more accurately represented by ellipses, and each planet has its own ellipse with the Sun at one focus. Ellipses make very good approximations to the actual orbits of planets, but the gravitational effects of the other planets, especially Jupiter, mean that the planets depart slightly from true elliptical orbits. That is taken care of by regular updates to the orbital elements of the planets, which are numbers which describe the sizes and shapes, orientation and inclination of all the planets' elliptical orbits.
What two planets have asteroid belts?
Mars and Venus. But the atmosphere of Venus is many many times denser. Also, all of the outer planets have similar atmospheres. Jupiter and Saturn are a very similar pair and Uranus and Neptune are also two that are very similar.
