›› Convert light year to gigalight year


light years
gigalight year


›› More information from the unit converter

How many light years in 1 gigalight year? The answer is 999315537.30322.
We assume you are converting between light year and gigalight year.
You can view more details on each measurement unit:
light years or gigalight year
The SI base unit for length is the metre.
1 metre is equal to 1.0570008340246E-16 light years, 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 years and gigalight years.
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›› Definition: Light-year

A light year, abbreviated ly, is the distance light travels in one year: roughly 9.46 1012 kilometres (9.46 petametres, or about 5.88 1012 (nearly six trillion) miles). More specifically, a light year is defined as the distance that a photon would travel, in free space and infinitely far away from any gravitational or magnetic fields, in one Julian year (365.25 days of 86400 seconds each).


›› Definition: Gigalight-year

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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