how long would it take to travel a lightyear?

Question

Days? Months? Years? Does it take a human lifetime? How long? Estimated time would be ok and exact time would be much better.

Answer 1

It depends on your speed. At ten percent the speed of light, it would take 10 years. At one percent the speed of light, it would take 100 years. Take your speed and divide it by 186,000 MPS to get percent speed of light you are traveling.

Answer 2

Thats a relative question. It all depends on how fast you are traveling. A lightyear is the distance that light will travel in one year so..
that would be 186,000 miles per sec (speed of Light) X 60 sec X 60 Minutes X 24 hours X 365 days = the distance light travels in on year or
5,865,696,000,000 miles
Now divide that big number by the amound of miles per hour you are traveling and that will give you the amount of hours it will take to get there.

Answer 3

Theoretically, you could travel a light year in under a second (from your perspective). All you have to do is get very, very close to the speed of light. A particle of light is ageless--it travels a light year in zero time. To light, the universe lacks dimension. There is no time or space.

In reality, there may be problems with going quite that fast. As you approach the speed of light, your mass increases. It takes more and more energy to accelerate. Your length contracts in the direction you are travelling. At a sufficiently high speed, your mass would increase and length contract to the point where your personal escape velocity exceeds the speed of light. From the perspective of the rest of the universe, you have entered your own Schwarzchild radius, or "pinched off."

From your own perspective, your mass would remain the same--but the universe would seem to disappear. So this puts a constraint upon how fast you can actually go. Needless to say, it is pretty close to light speed.

Given an engine with unlimited fuel, it would require roughly one year at a constant acceleration of one earth gravity to close in on light speed with an initial velocity of zero.

From the perspective of someone outside your frame of reference, were you to travel at close to the speed of light, one year would elapse for them. Much less than that for you.

Answer 4

Lightyear. A lightyear is the distance light travels in one year at the speed of 299,792 kilometers per second. That is 186,282 miles per second. With 31,557,600 seconds in a year, one lightyear equals a distance of 9.46 trillion kilometers or 5.87 trillion miles.

Answer 5

The farthest probe sent by utilising guy is Voyager a million, now at a hundred UA, this is approximately 50 thousand gentle-seconds, or 0.0016 gentle-years. That probe replaced into released in 1977, so it lined that distance in 33 years. it is going to likely be some 21 thousand years formerly it covers a million gentle-year. of direction, keep in mind that the probe is guided by utilising inertia. you're able to desire to strap a rocket onto it, in spite of the undeniable fact that it will merely improve the launch weight and you will not have the skill to apply it as quickly as the gasoline runs out.

Answer 6

One year traveling at the speed of light.

Answer 7

I one could travel the speed of light, it would take one year to travel one light year. A light year is the distance light travels in one year.

At the fastest we could travel now it would take hundreds of years.

Answer 8

That would depend how fast you are traveling. The faster you go the less time it would take.

Answer 9

At 65MPH(average USA highway speeds) it would take about 10,324,033.5 years. That if you don't have to stop for gas. ;)

A light year is the distance travel in one year.

* One light year (ly) = 9.5x10(to the 12th power) km

Answer 10

If you could travel as fast as the shuttle (17,000) mph, it would take you almost 40,000 years.