Light year (l.y., from English light-year) is unityinmeasureusedatAstronomy. It means the distance a photon (a particle of light) travels in a year.
The speed of light is the fastest there is. The capacity of a photon to travel is 300,000 kilometers per second. Eachlight-yearmatchesThefencein9,5trillionsinkilometers, that is, 9,500,000,000,000 kilometers.
A photon travels the distance from the Moon to planet Earth in about 1 second. Despite being the closest celestial body to Earth, the distance between the Moon and our planet is approximately 384,000 kilometers.
Perwhatlight-yearéTheunityastronomical? Simply to avoid using gigantic numbers, after all, with regard to the Universe, the distances are really immense.
Noconfuse! Light year is not a unit of time.
How to Calculate 1 Light Year?
To find out how much is a light year enoughmultiplyThespeed of lightfurnumberinsecondswhatexiston oneyear. A year has 31,536,000 seconds.
300,000 km * 31,536,000 s= 9,460,800,000,000 km
So if 1 light year equals approximately 9.5 trillion kilometers, what is 2 light years worth?
300,000 km * 31,536,000 s= 9,460,800,000,000 km
9,460,800,000,000 km * 2 km = 18,921,600,000,000 km, that is, eighteen trillion, nine hundred and twenty-one billion and six hundred million kilometers.
Light Year: Quick Questions and Answers
1) Owhaté? An astronomical unit of measurement.
2) WhichThevelocitygiveslight? 300,000 kilometers or 300,000,000 meters per second.
3) Onelight-yearequalsThe? 9,460,800,000,000 kilometers.
Youalsohe canifto interestper:
- Universe
- Celestial bodies
- Planet Earth
- Order of magnitude
