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## How many km is Proxima Centauri?

40,208,000,000,000 km

Distance Information Proxima Centauri, the closest star to our own, is still 40,208,000,000,000 km away. (Or about 268,770 AU.) When we talk about the distances to the stars, we no longer use the AU, or Astronomical Unit; commonly, the light year is used.

## What is the distance to Proxima Centauri in kilometers scientific notation?

approximately 40 trillion kilometers

Scientific Notation: The Distance to Proxima Centauri. The nearest star beyond the Sun, Proxima Centauri, is located approximately 40 trillion kilometers from Earth. A common way of writing this distance is “40 × 1012 km”.

## What is the distance of Proxima Centauri from Earth in both miles and kilometers?

The next closest star is Proxima Centauri. It lies at a distance of about 4.3 light-years or about 25,300,000,000,000 miles (about 39,900,000,000,000 kilometers).

## How far away is 4.2 light-years?

about 6,300 years

Proxima Centauri is 4.2 light-years from Earth, a distance that would take about 6,300 years to travel using current technology. Such a trip would take many generations. Indeed, most of the humans involved would never see Earth or its exoplanet counterpart.

## How far away is closest star?

4.246 light years

Proxima Centauri/Distance to Earth

## How do you convert light-years to meters?

figure out the speed of light in meters per second, multiply by the number of seconds in a year, and jack’s a doughnut, there you are! for 1 ly, just multiply the speed of light (in m/s) times the number of seconds in a year.

## What is the scientific notation of Earth?

In scientific notation, Earth’s mass is 5.97×1024 kg. The 5.97 part is called the coefficient; the 24 is called the exponent.

## How far is the nearest star in light years?

about 4.37 light-years

The nearest stars to Earth are in the Alpha Centauri triple-star system, about 4.37 light-years away. One of these stars, Proxima Centauri, is slightly closer, at 4.24 light-years.

## How long would it take to travel 40 light-years?

Considering that speed, It would take aprox.: 59,627 years with today technology (https://www.google.com/#q=40+light+years+%2F+724000+km%2Fh&*). I read an article stating a spacecraft traveling 38000 miles an hour would take approximately 80,000 years to travel 1 light year.