How many light-second in 1 gigalight-year?
The answer is 3.1536E+16.
We assume you are converting between light second and gigalight year.
You can view more details on each measurement unit:
light-second or gigalight-year
The SI base unit for length is the metre.
1 metre is equal to 3.3356409519815E-9 light-second, or 1.0577248071986E-25 gigalight-year.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between light seconds and gigalight years.
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You can do the reverse unit conversion from gigalight-year to light-second, or enter any two units below:
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A light-second is a unit of length. It is defined as the distance light travels in an absolute vacuum in one second or 299,792,458 meters. Note that this value is considered exact, since the meter is actually (as of 1983) defined in terms of the light second. It is just over 186,282 miles and almost 109 feet.
One gigalight-year, abbreviation "Gly", is one billion light-years — one of the largest distance measures used. One gigalight-year equals 306.601 million parsecs, or roughly one-thirteenth the distance to the horizon of the observable universe (dictated by the cosmic background radiation). Gigalight-years are typically used to measure distances to supergalactic structures, such as clusters of quasars or the Great Wall.
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