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.
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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.
This statement is incorrect. An astronomical unit (AU) is a unit of distance equal to the average distance between the Earth and the Sun, approximately 93 million miles. A light year, on the other hand, is the distance that light travels in one year, about 5.88 trillion miles. So, a light year is a much larger distance unit than an astronomical unit.
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 measure of distance. A light year is about 9,460,000,000,000 km, the distance light travels in a vacuum in one Earth year. It has nothing to do with weeks, months, days, etc. or any other of our calendar measurements of time.
One Light-year is 63,024 Astronomical units.
The unit of measurement is the "light year".
light-year
"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.
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 larger than an astronomical unit. One astronomical unit (AU) is the average distance between the Earth and the Sun, approximately 93 million miles. A light year is the distance that light travels in one year, which is about 5.88 trillion miles.
This statement is incorrect. An astronomical unit (AU) is a unit of distance equal to the average distance between the Earth and the Sun, approximately 93 million miles. A light year, on the other hand, is the distance that light travels in one year, about 5.88 trillion miles. So, a light year is a much larger distance unit than an astronomical unit.
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.