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"Meters per second" is a proper and wonderful unit for speed, but there's no

answer to that question, because a 'light-year' is not a speed. It's a distance,

defined as the distance that light travels through vacuum in one year.

Speed of light in vacuum . . . 299,792,458 meters per second

Length of 1 light-year . . . . . 9.4605284 × 1015 meters

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Q: How fast is a light year in meters per second?
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Related questions

What is the speed of light and how far does it travel in one Earth year?

The speed of light is about 300,000 kilometers per second (3 x 108 meters per second); the distance light travels in a year is called a light-year. It is equivalent to about 9.5 x 1015 meters.


What are light-years?

The speed of light is 299,792,485 meters per second so if you travelled at this speed for a whole year that would be a light year.


How fast can light travel in one year?

300000 km/second


How fast can light travel in a year?

In a vacuum, light always travels at the same speed, approximately 3 x 10^8 meters/second. In a year, there are 31556736 seconds, so light travels 9.5 x 10^15 meters. That unit is called a light year. More details are available at: http://en.wikipedia.org/wiki/Light-year


What does light travel at in space?

Exactly 299,792,458 meters per second. Or about 9.461 times 10 to the power 15 meters in a year.


How many meters are in a light year?

1 light year = 9.4605284 × 1015 meters


How many km would light travel in a minute?

-Light travels at 299,792,458 meters per second.-There is 31,556,926 seconds in one year.-Light travels 9,460,528,412,464,108 meters in one year and after doing the math, light travels 9,460,528,412,464.108 kilometers in one year.


What is light year and what speed does light travel?

A "Light Year" is a measure of distance. It equals approximately 9.5 trillion kilometers or 5.9 trillion miles. The Speed of Light (C) is: 299,792,458 meters per second 17,987,547,480 meters per minute 1,079,252,848,800 meters per hour 186,282 miles per second (~ 71/2 times around the Earth in one second) 11,176,920 miles per minute 670,615,200 miles per hour


How fast does lightyear go?

In space or in air, light covers about 186,000 miles (300,000 km) every second."Light year" is a distance ... the distance light covers in a year, at that speed.


How many meters are in a lightyear?

A light-year is exactly 9,460,730,472,580,800 meters.This is about 9.5 × 1015 meters, 9.5 Pm (petametres), or about 9.5 quadrillion meters.It is defined as the distance that light travels in a vacuum in one Julian year. As a Julian year is defined as exactly 365.25 days, and the speed of light in a vacuum is defined as exactly 299,792,458 meters/second, a light year is365.25 days × (24 hours/day) × (60 minutes/hour) × (60 seconds/minute) × 299,792,458 meters/second = 9,460,730,472,580,800 meters.This is not an approximation but an exact number due to the definitions of a Julian year and the speed of light.


What speed does light travel at in space?

Exactly 299,792,458 meters per second. Or about 9.461 times 10 to the power 15 meters in a year.


How far does light travel in a year calculated in meters?

Light travels approximately 9,460,706,958,078,329 meters in one year.