# Alpha Centauri, the nearest star, is just over 4 light years away. Traveling at a speed of 2000 miles per hour (the speed of a fast jet airplane), how long would it take to get there in years?

##### 2 Answers

1341525 years, nearly.

#### Explanation:

1 light year = 5.88 E+12 miles. So, at 2000 mph, the time to reach Alpha Centauri is 4 X 5.88E+12/2000 hours = 1.176E+10 hours = 1.176E+10/(24 X 365.256) years = 1341525 years. Even to reach close by Mars, at your speed, it might take 8 years.All these have only theoretical interest.

*134, 260, 0 years!*

#### Explanation:

Just think, what is mean by ** light year**? It means that when light will travel for one year, the position where it will be is the distance of one light year.

*Speed of Light*

There is

If light travel for 4 years, then:

Converting miles of jet to meters:

Now, dividing light years by the value of jet in meters,

This will be the time taken by the jet to reach the point in seconds

Converting it into years:

*134, 260, 0 years!*

This will be the time taken by a jet airplane to get to the star *Alpha Centuri*