The newly-formed sun pulled interstella debris into orbit around it because of gravity. The 'dust' settled into a disc around the centre-line of the sun, and each planet condensed out of the dust. This meant that the planets are more-or-less on a similar plane to each other.
Because of the way our solar system was formed.
Our solar system formed from a nebula that was the remnants of a large star that went supernova. As the material of the nebula condensed and coalesced, gravity caused the new star system to rotate around the central hub, which would eventually become our sun. As the sun got bigger and more dense from the matter being pulled into by gravity, it finally reached a point when the gravity was great enough to cause nuclear fusion to occur within the core of the sun.
So the planets, like the sun, also condensed from the matter that was rotating around the new star that became our Sun, and became the planets we now know, and they are still rotating to this day around the sun in the solar plane.
The Sun was formed out of a spiralling horizontal disc of gas. The particles near centre of the cloud clumped together to form the Sun, while planets were formed further out from the centre. The gas was a horizontal disc, so that is why they are all on the same plane.
The planets all lie quite closely in the Ecliptic Plane. [So called because when a planet (or our Moon) crosses that plane such as to block the sunlight to another planet (or our Moon), an eclipse occurs.] The planetary plane may be a natural convergent process, consider all those spiral galaxies out there. Our Milky Way galaxy roughly resembles that of our Solar System. That is of a flattened disk, with a dense blob in the centre of it. There is, however, know scientific reason for the planets being lined up on a plane as they are.
The theory I was taught during the last ice age was that the solar system condensed out of a single gas cloud.
Each planet was part of that cloud and as the cloud was spinning in that direction all the planetary orbits ended up that way.
As to on the same plane it comes down to gravity shaping the gas cloud into a disk and so on.
They're not. It is statistically impossible for all the planets to align in a single row. However, you sometimes see them arranged like that in pictures or models, because it's easier to display the solar system that way.
The planets formed from a disk of gas and dust orbiting the young sun.
This is the result of the formation of the Solar System, which started as a rotating gas cloud.
Because they can't be trusted. They lie no matter how you look at them.
Gravity and centrifical force.
Inference.
1). They orbit in the same around the sun, and as the sun. 2). Orbits of planets and their larger moons are in just about the same plane. 3). Almost all planets and moons rotate on their axes in the same direction as the planets orbit the sun.
So far, all the planets discovered orbiting THIS star orbit in the same direction; counter-clockwise as seen from high above the north pole. We expect that all planets in a particular solar system are likely to orbit in the same direction.
The collapsing gas and dust cloud began to spin and form a disk.
The Ecliptic. To be accurate, the Ecliptic is the plane in which Earth moves around the Sun; the major planets go around the Sun in planes that are close to the Ecliptic.The Ecliptic. To be accurate, the Ecliptic is the plane in which Earth moves around the Sun; the major planets go around the Sun in planes that are close to the Ecliptic.The Ecliptic. To be accurate, the Ecliptic is the plane in which Earth moves around the Sun; the major planets go around the Sun in planes that are close to the Ecliptic.The Ecliptic. To be accurate, the Ecliptic is the plane in which Earth moves around the Sun; the major planets go around the Sun in planes that are close to the Ecliptic.
From the perspective of looking downward at the plane of the ecliptic where North is up, the planets revolve counterclockwise.
Inference.
It is called the solar system plane.
Because the sun is responsible for everything in the Solar system the planets lie on the suns equatorial line and still spin like they did before the planets formed.All the planets go around the sun the same way and lie on a relatively flat plane because of gravity. This is just a theory.
If an object revolves around the sun on the same plane as the planets, it is lying on an ecliptic.
The planets orbit in the same plane because there is no force to take them out of the plane. The plane is the plane of the average rotations of all the elements of the cloud of gases that made up the solar system.
1). They orbit in the same around the sun, and as the sun. 2). Orbits of planets and their larger moons are in just about the same plane. 3). Almost all planets and moons rotate on their axes in the same direction as the planets orbit the sun.
The theory I was taught during the last ice age was that the solar system condensed out of a single gas cloud. Each planet was part of that cloud and as the cloud was spinning in that direction all the planetary orbits ended up that way. As to on the same plane it comes down to gravity shaping the gas cloud into a disk and so on.
So far, all the planets discovered orbiting THIS star orbit in the same direction; counter-clockwise as seen from high above the north pole. We expect that all planets in a particular solar system are likely to orbit in the same direction.
All the planets revolve around the Sun in the same direction. As seen from a position arbitrarily "above" the plane of the planetary orbits (i.e. above Earth's North Pole), the planets orbit counter-clockwise.
It's a demonstration of their angular momentum vectors being aligned in almost the same direction. Laplace added up all the vectors for the planets (the angular momentum vector is directed along the axis of rotation) and defined an invariable plane for the solar system, which is a plane that stays the same all the time. Total angular momentum is conserved so this plane will never change, even though momentum might be exchanged between the planets as their orbits change slightly.
The Ecliptic is the plane of Earth's orbit around the Sun. Other planets are also found more or less on the same plane.