Neptune spins at a equatorial rate of 2.68 km/sec, or a velocity of 9,660 km/hr (6000 mph).
According to http://solarsystem.nasa.gov/planets/, Venus has an orbital velocity of 78,341 mph, and Neptune's is 12,253 mph...
The orbital speeds are higher when closer to the sun, but slower and more similar as you move out. The two that are closest in speed are Uranus and Neptune. Uranus at 6.8352 km/sec and Neptune at 5.4778 km/sec.
Titan, Saturn's largest moon, has an orbital speed of about 5.57 km/s. This means it travels around Saturn at an average speed of 20,052 km/h.
Mercury travels around the sun at the lowest speed compared to other planets in our solar system. Its average orbital speed is about 47.87 km/s.
Earth mercury Venus mars Jupiter Saturn Neptune uranus
5.43 km per second.
According to http://solarsystem.nasa.gov/planets/, Venus has an orbital velocity of 78,341 mph, and Neptune's is 12,253 mph...
Mercury has the slowest orbital velocity around the sun compared to the other planets in our solar system. Its average orbital speed is about 47.87 km/s.
The orbital speeds are higher when closer to the sun, but slower and more similar as you move out. The two that are closest in speed are Uranus and Neptune. Uranus at 6.8352 km/sec and Neptune at 5.4778 km/sec.
It is the orbital velocity (speed and direction) or orbital speed (rate of motion). It is usually stated as "average orbital speed" but is actually "mean orbital speed."
Titan, Saturn's largest moon, has an orbital speed of about 5.57 km/s. This means it travels around Saturn at an average speed of 20,052 km/h.
As it increases, the orbital speed increases, and the period (time to complete an orbit) decreases, which is why Mercury has the shortest year, and Neptune the slowest orbital speed.
Mercury travels around the sun at the lowest speed compared to other planets in our solar system. Its average orbital speed is about 47.87 km/s.
Its average orbital speed is 9.69km/s.
Earth mercury Venus mars Jupiter Saturn Neptune uranus
Neptune has an orbital speed around the Sun of about 5.43 km/s (19,548 km/h or 12,146 mph)
Saturn has a slower orbital speed than Jupiter. Saturn's average orbital speed is about 9.69 km/s, while Jupiter's average orbital speed is about 13.07 km/s, making Jupiter about 3.38 km/s faster than Saturn.