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Like any distance, it depends on how fast you are going. At the speed of light it would take 4,000 years to travel that distance.
The distance light would travel in one year in a perfect vacuum is a light year. It's a subtle distinction, but an important one.
Well, it takes 2,700 years for light to travel that far. Anything travelling at half light-speed would take 5,400 years. At 1/4 light-speed, it would take 10,800 years.
At a distance of 56 million kilometers, light requires 3.1 minutes to reach Mars from Earth.
21 million light years is a distance of 1.23448496 × 10^20 miles. In other words, it would take a beam of light 21 million years to travel that distance.
If you measured the distance between the moon and earth you could calculate the correct Distance you are recommended to travel.
The distance light will travel, in a vacuum, in one minute.
Like any distance, it depends on how fast you are going. At the speed of light it would take 4,000 years to travel that distance.
The answer is 200
from the book
The correct unit to describe the distance between stars is the "light year", the distance a photon of light would travel (through a vacuum) in a year.
Because of the unwieldy large numbers that would otherwise be required.A Parsec is the distance from the Sun to Earth, and a light year is the distance that light would travel in a year.
A light year is the distance light travels in one year in a vacuum. In miles, this translates to: 5.87849981 × 1012 miles
Light years - the distance that light would travel in a year, which is approx 9.5 trillion kilometres.
Approximately 4.3 years. The distance is 4.3 light-years; a light-year is the distance you can travel in a year, at the speed of light. Please note that current technology doesn't allow us to travel anywhere near the speed of light.
A minute is a measurement of time. A light minute is a measurement of distance. it's the distance light would travel in one minute. (That's about 10 million miles!)
The distance light would travel in one year in a perfect vacuum is a light year. It's a subtle distinction, but an important one.