The answer depends on the relative motion of Neptune. The distance from the earth to Neptune when you set off will not be the same as the distance when you arrive. You would need to calculate the position of Neptune at the arrival time.
This is like, if you are playing a ball game you do not go to where it is but to a point which you and the ball will get to at the same time.
One year on Neptune is 164.79 earth years. So, a decade would be ten times as much, or 1647.9 earth years.
How long it would take to get to Neptune from Earth would depend on the path chosen and on where Neptune and Earth were in their orbits when the mission was launched. For example, the Voyager 2 spacecraft was launched on Aug 20, 1977 and it reached Neptune on Aug 24, 1989. So, Voyager 2 took about twelve years to reach Neptune.
The rotation period of Neptune is 16.1 earth hours.
The closest distance of earth and neptune is 4.301 billion kilometers and the farthest distance of earth and neptune is 4.553 billion kilometers. So, the time to reach Neptune ranges from 8.602 hours to 9.106 hours.
That is exactly one day on Neptune.
One year on Neptune is 164.79 earth years. So, a decade would be ten times as much, or 1647.9 earth years.
How long it would take to get to Neptune from Earth would depend on the path chosen and on where Neptune and Earth were in their orbits when the mission was launched. For example, the Voyager 2 spacecraft was launched on Aug 20, 1977 and it reached Neptune on Aug 24, 1989. So, Voyager 2 took about twelve years to reach Neptune.
Neptune are 164.79 years compared to earth
It took twelve years to get from earth to neptune.
The rotation period of Neptune is 16.1 earth hours.
about five times less than earth
Neptune takes about 165 Earth years.
That is exactly one day on Neptune.
The closest distance of earth and neptune is 4.301 billion kilometers and the farthest distance of earth and neptune is 4.553 billion kilometers. So, the time to reach Neptune ranges from 8.602 hours to 9.106 hours.
One year on the planet Neptune is the equivalent of 164.79 years on Earth. A day on Neptune is equal to 16 hours and 6 minutes.
The time would be T= d/c where d is the distance between Earth and Neptune and c is the speed of light.
A day on Neptune is 16 hours, 6 minutes and 36 seconds. A year on Neptune is 164.8 Earth years.