Full name: gigalight year
Plural form: gigalight years
Symbol: Gly
Alternate spelling: gigalight-years
Category type: length
Scale factor: 9.454254955488E+24
The SI base unit for length is the metre.
1 metre is equal to 1.0577248071986E-25 gigalight-year.
Valid units must be of the length type.
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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.