It is the distance light travels (in a vacuum) in one year.
1 ly = (299,792,458 m/s)(60 s/min)(60 min/hr)(24 hr/day)(365.25 day/year) = N m/year This can be solved for N which is the number of meters light can travel in a vacuum (space) over the course of one year.
<<>>
The international definition of a light year uses a Julian year as the basis for the calculation, which is exactly 365¼ days, making the distance 9.46073047 times 10 to the power 15 metres.
"light-year"
The distance light travels in one year is called a light-year. To get the number 9,470,000,000,000, the unit used is the kilometer.
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.
The light year by far. It is equal to about 63,241 AU's and each AU is about 93,000,000 miles (the distance from the earth to the sun). Over all a light year is close to 6 trillion miles.
The astronomical unit is the average distance from the earth to the sun, and is 149 598 000 kilometres. A light year is the distance light will travel in a year, the speed of light is just under 300 000 kilometres per second, so light travels one astronomical unit in just over eight minutes. A light year is 9.46x1012 kilometres, or 63239.67 astronomical units.
The unit of measurement is the "light year".
One Light-year is 63,024 Astronomical units.
"light-year"
The distance light travels in one year is called a light-year. To get the number 9,470,000,000,000, the unit used is the kilometer.
light-year
It doesn't make sense to convert that. A light-year is a unit of distance, not a unit of time. A light-year is the distancelight travels in a year.
A light-year is a unit of distance, not a unit of time.
A light year is a unit of length used in Astronomy to define distance. One light year is equal to just under 6 trillion miles.
It is a unit of time and distance. A light year is the amount of time it takes for a beam of light to travel through space in one earth year, which is 5.9 trillion kilometers. Time : one year, distance : 5.9 trillion km.
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.
A light year is a unit of distance; it is the distance lght travel in one year which is 5.8 trillion miles.
'Light-year' is a unit of a distance. It is the distance for light to travel one year. So it is a great distance.