Light Years To Years

To obtain an idea of the size of a light year take the circumference of the earth 24 900 miles lay it out in a straight line multiply the length of the line by 7 5 the corresponding distance is.

Light years to years. A light year is a measure of distance equal to how far light travels in one earth year. That is a 6 with 12 zeros behind it. Without light years discussing the distance between two stars would require the use of large unruly numbers. Light travels a whopping 9 460 528 000 000 km in a year equivalent to 5 878 499 562 555 miles.

How far is 40 light years. Those are really large numbers. A light year is the distance that light travels in one year. A light year is the distance light travels in one earth year.

Because distances across the universe are so large astronomers use light years. When we use powerful telescopes to look at distant objects in space we are actually looking back in time. Because it includes the word year the term light year may be. Therefore a light year is exactly 9 460 730 472 580 8 kilometers.

So how far does light go in a year. The year used by the international astronomical union is 365 25 days. Light travels at a speed of 186 000 miles. One light year is about 6 trillion miles 9 trillion km.

As defined by the international astronomical union iau a light year is the distance that light travels in vacuum in one julian year 365 25 days. Looking back in time. In february 2017 astronomers detected seven earth sized planets orbiting a single star 40 light years away from earth. The light year is a measure of distance not time.