EarthSky OCT 17, 2012

How long would it take to get to Alpha Centauri?

Alpha Centauri is the nearest star system to our sun. But, at 4.3 light-years away, getting there would be extremely difficult. The Alpha Centauri system is much farther away from us than the sun. There’s a lot of empty space between us and this nearest star. If you imagine Earth as a grain of sand, then Alpha Centauri would be over 10 kilometers – or about 6 miles – away.

Of course, in actual fact, Alpha Centauri is trillions of miles away from Earth. Its distance of 4.3 light-years equals 25.6 trillion miles away – nearly 300,000 times the distance from the Earth to the sun.

Read more: How long would it take to get to Alpha Centauri? | Space | EarthSky.

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