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# At what speed does Neptune orbit the sun?

Updated: 8/11/2023

Wiki User

14y ago

The planet Neptune takes about 16 hours, 6 minutes, 36 seconds for one complete rotation, as evidenced by its visible outer atmosphere. This is a "day" on Neptune.

That's about 2/3rds of an Earth Day. Note that the period of rotation is measured by watching Neptune's magnetic field. The time cited is the time it takes the "whole planet" to rotate once on its axis. This is important because Neptune is not solid - it's a gas planet, and gas rotates differentially. Around the equator, the rotational speed of the "air" there is about 18 hours, and the rotational speed for the "air" at the poles is about 12 hours.

The rotation period (day) of Neptune's interior of 16 hours, 7 minutes was determined by Voyager 2. This was the first reliable determination of Neptune's rotation period. The 12 to 18 hour rotation periods found for the atmospheric features differ from the above value because of winds.

Wiki User

7y ago

Wiki User

14y ago

Neptune's orbital velocity is 5.43 km/sec (nearly 20,000 kph or 12,000 mph).

Estimate by Computation

To estimate the distance Neptune travels in one orbit around the Sun : 2πr where the average radius is 4.5 x 109 km and the corresponding circumference 28.3 x 109 km. Given the computed orbital time of 164.79 Earth years, and Speed = Distance / Time, the estimate is 19,590 km/hr. (3600 seconds x 5.43 m/sec - 19,548 km/hr)

Wiki User

10y ago

The planet's equatorial rotation speed is 2.68 km per second, so that it completes one spin (day) every 16.1 Earth hours.

The maximum spin is about 6,000 mph, about six times faster than on Earth. However, because the planet's outer layers are not solid, observed features move at different speeds depending on their latitude.

Wiki User

7y ago

At its Equator, the rotational speed is about 9660 km/hour (2.68 km/sec).

(This is nearly 10 times as fast as Earth.)

Wiki User

9y ago

Neptune spins at a rate of 9,660 km/hr. It takes Neptune 16 hours, 6 minutes and 36 seconds to rotate once on its axis.

Wiki User

11y ago

Neptune orbits the sun once every 164.79132 years.

(About 164 years and 289 days.)

Wiki User

9y ago

Neptune spins once on its axis every 16 hours and 36 seconds. Its rotational speed is 9,660 kilometers per hour.

Wiki User

11y ago

It takes about 165 Earth years to go once round the Sun.

The average speed of the planet in its orbit is about 5.43 km/sec.

Wiki User

14y ago

it takes ( one Neptune's year) 164 earth year

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Q: At what speed does Neptune orbit the sun?
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Related questions

### What determines the speed of orbit on Neptune?

According to Kepler's laws of planetary motion, its distance from the sun.

### When does Neptune orbit the Sun fastest?

Neptune orbits the Sun (as do most planets) with an elliptical orbit. When the orbit takes the planet closest to the Sun it is moving faster than when it is furthest from the Sun when on an elliptical orbit.

### Time it takes the planet Neptune to orbit the sun?

Neptune takes 164.79 Earth years to orbit the sun once.

### What would Neptune's orbit be if it orbited 96 percent closer to the Sun than it does?

Neptune would orbit at 111,920,000 miles if the orbit was 96% closer to the Sun.

### Which planet orbits the Sun slowest?

If you still consider Pluto to be a planet then Pluto would be the slowest to orbit the sun. If you don't believe Pluto is a planet anymore then Neptune would be the slowest planet to orbit our sun.

### How long does Neptune take to orbit the Sun compared to the earth?

It takes about 164 years, nine and a half months for Neptune to orbit the Sun.

### How much farther from the sun is the orbit of Neptune than the orbit of the Earth?

Neptune is about 30 times farther away from the sun than Earth is.

### What is the length of time ti takes Neptune to orbit the sun?

It take 164 Earth years for Neptune to orbit around the sun once.

### Does Neptune orbit around Uranus?

No, Neptune orbits around the Sun.

Neptune

### How miles is the orbit of Neptune?

Neptune orbits the sun at around 4.5 million kilometers. Neptune follows an elliptical orbit around the sun so its orbital distance varies.

Yes it does.