Mercury - 47.8725 km/sec = 107,000MPH
Venus - 35.0214 km/sec = 78,350 MPH
Earth - 29.7859 km/sec = 66,630 MPH
Mars - 24.1309 km/sec = 54,000 MPH
Jupiter - 13.0697 km/sec =29,240 MPH
Saturn - 9.6724 km/sec = 21,640 MPH
Uranus - 6.8352 km/sec = 15,290 MPH
Neptune - 5.4778 km/sec = 12,250 MPH
Pluto (TNO, or dwarf planet) = 10,700 MPH
The path that planets take around the sun is called it's orbit. The gravitation pull of the sun keeps each planet in it's orbit. Each planets orbit varies in the time it takes to make one trip around the sun.
Distance from the Sun. (The closer it is, the faster it moves.)
The exact number depends on the individual planet, and the exact shape and eccentricity of its orbit. The one general statement that can be made for every planet is that when it's farthest from the sun, it's moving at the slowest speed relative to the sun of any point in its entire orbit.
The perihelion is the closest point to the Sun in the orbit of a planet.It is different for each planet based on the elliptical variation, but will always occur at the same point in each orbit.
The curved path is called the orbit. Each planet has its own orbit. Some are faster and some are slower. They are caused by the gravity of the planet and the sun
Each planet moves in a different orbit, at a different average distance from the sun, and at a different speed.
The path that planets take around the sun is called it's orbit. The gravitation pull of the sun keeps each planet in it's orbit. Each planets orbit varies in the time it takes to make one trip around the sun.
Distance from the Sun. (The closer it is, the faster it moves.)
The exact number depends on the individual planet, and the exact shape and eccentricity of its orbit. The one general statement that can be made for every planet is that when it's farthest from the sun, it's moving at the slowest speed relative to the sun of any point in its entire orbit.
Fairly fast. It makes a complete orbit of the planet every 24 hours and around the sun each year. Relative to the planet though, the speed is zero mph.
The farther a planet is from the sun the slower its orbit speed.
It requires a VERY SPECIFIC speed for a planet to have an orbit that is exactly circular. Let's assume, for example, that at a certain point in the orbit, the planet's speed is less than this specific speed. In that case, the Sun's attraction will pull the planet closer to the Sun.This, in turn, will make the planet faster; and half an orbit later, it will be faster enough to "escape" from the Sun again. The final result of all this is that the planet will move around the Sun in an elipse.
The perihelion is the closest point to the Sun in the orbit of a planet.It is different for each planet based on the elliptical variation, but will always occur at the same point in each orbit.
The curved path is called the orbit. Each planet has its own orbit. Some are faster and some are slower. They are caused by the gravity of the planet and the sun
This was worked out by Kepler about 400 years ago. Kepler's second law of planetary motion shows how a planet moves faster when it's nearer, in its elliptical orbit, to the Sun. Kepler's third law relates the time a particular planet takes to orbit the Sun to its average distance from the Sun. A planet which is farther from the Sun has a slower orbital speed than a planet closer to the Sun.
orbit
orbit