At the current rate of propulsion that we posses,who long would it take to reach the closet star???

Question

...tom science

Answer 1

I calculate that Voyager, which is leaving the solar system at 30,000 mph, would take 96,000 years to cover the 4.3 light year distance to the nearest star, Alpha Centauri.

4.3 years * 365 days * 24 hours * 60 minutes * 60 seconds = 135,604,800 seconds in 4.3 years.

At 186,000 miles a second, 4.3 light years is
135,604,800 * 186,000 = 25,222,492,800,000 miles.

At 30,000 mph, it takes
25,222,492,800,000 / 30,000 = 840,749,760 hours to cover the distance.

There are 365 * 24 = 8,760 hours in a year, so

840,749,760 / 8,760 = 95,976 years.

OOPS, I just looked up the distance to Alpha Centauri on wikipedia and it is 4.365 light years. That extra 0.065 light years would take an extra 0.065 * 365 * 24 * 60 * 60 * 186,000 / 30,000 / 24 / 365 = 1,450.8 years.

Answer 2

The fastest spacecraft that can be built with technology currently used can achieve a velocity of 30 km/s; roughly 0.01% the speed of light. By comparison, the New Horizons probe that was sent to Pluto, will reach a velocity of roughly 21 km/s when it passed beyond the orbit of Mars back in June.

The nearest star, Alpha Centauri is 4.3 light years away; it would take roughly 40,000 years to reach that distance at 30 km/s.

Answer 3

The closest star, Alpha Centauri, is roughly 70,000 light years away. This means that if you traveled from here at the speed of light it would take 70,000 years to get there.

Answer 4

It's estimated that the Voyager probes might make it to the nearest star in about 11,000 years. Dont hold your breath.

Answer 5

70000 years, give or take a few centuries.

Answer 6

thousands of years.