How many light-years is a mega light-year?

Answer 1

It is a unit of length, not time. It is defined as the distance that light travels in a vacuum in one Julian year. It is just under 1013 kilometers or 6 trillion miles.

• Kilometers: 9,454,254,955,488 km
• Miles: 5,878,630,000,000 miles

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Answer 2

A light-year is the distance that light travels in a vacuum in one Julian year. In astronomy, a Julian year is a unit of measurement of time defined as exactly 365.25 days.

1 ly = 5.87849981 x 1012 miles

1 ly = 9.4605284 x 1012 kilometers

You can estimate this using the speed of just under 300,000 km per second.

There are 60 seconds in a minute, 60 minutes in an hour, 24 hours in a day and 365.25 days in a year. Multiply these numbers together and you will have the value 9,467,280,000,000 kilometers, which is slightly higher than the actual.

Answer 3

A light year is not a period of time, but rather a distance, specifically the distance that light travels in one year through a vacuum.

That distance is roughly 5.88 trillion miles or 9.46 trillion kilometers.

Answer 4

A light-year is the distance light travels in a year. It is a unit of distance, not of time. This is a frequent source of confusion, by the way. A light-year is approximately 10 million million kilometers.

Answer 5

A giga-anything means a billion (109) of them.

Answer 6

Giga is a prefix meaning billion. A giga-light-year is about 8% of the distance to the edge of the universe.

Answer 7

A light year is a unit of distance, It is the Distance Which light will Travel in an year

This is the largest unit of Distance.

1 light year = 9.4605284 × 1015 meters

!!

Answer 8

A light year is the distance light travels in one Earth year. It's a measure of distance, not a measure of time, so you've essentially asked the equivalent of "How many quarts in a mile?"

Answer 9

A light year is not a length of time, but a length of distance. It is the distance light could travel in one year, or about 5,878,630,000,000 miles.

Answer 10

A light year is the distance light travels in one year and is a measure of distance or length. It equates to about 5.9 trillion miles.