earth
The imaginary line around which a planet spins is called its axis. It is an invisible line that runs from the planet's north pole to its south pole and determines the direction of rotation.
Venus is the only planet in our solar system that spins clockwise on its axis. This is also known as a retrograde rotation.
Uranus is the planet in our solar system that spins on its side. Its axis of rotation is tilted at a steep angle, causing it to appear as if it is rolling along its orbit around the sun.
The orbit of a planet is the path it follows as it travels around the sun. The axis of a planet is an imaginary line running through its center and around which it rotates. The tilt of a planet's axis relative to its orbit affects its seasons.
Uranus spins on a nearly horizontal axis, tilted at an angle of about 98 degrees relative to its orbit around the Sun. This unique orientation causes extreme seasonal variations on the planet as different hemispheres receive varying amounts of sunlight throughout its orbit.
Pluto, but its now no longer classed as a planet - its a `Dwarf Planet`
The axis
The axis
The imaginary line around which a planet spins is called its axis. It is an invisible line that runs from the planet's north pole to its south pole and determines the direction of rotation.
Jupiter spins the third fastest on its axis, with a day lasting about 9.9 hours.
When a planet spins on its axis it is said to rotate. (Think of a top.)
The rotational period, or how fast a planet spins on its axis, determines the length of a day on that planet. A faster spin results in shorter days, while a slower spin leads to longer days.
Neptune
How long it spins on it's axis
Venus is the only planet in our solar system that spins clockwise on its axis. This is also known as a retrograde rotation.
Well the earth spins counter clockwise on its axis.
-- If a planet spins, then it has a spin axis. -- If it has a spin axis, then it has poles. -- An equator is just the line made up of all the points that are midway between the poles. So if the planet has poles, then it has an equator. -- Mercury spins.