## ››Convert gigalight year to astronomical unit

 gigalight-year astronomical unit

How many gigalight-year in 1 astronomical unit? The answer is 1.5823337893396E-14.
We assume you are converting between gigalight year and astronomical unit.
You can view more details on each measurement unit:
gigalight-year or astronomical unit
The SI base unit for length is the metre.
1 metre is equal to 1.0577248071986E-25 gigalight-year, or 6.6845871226706E-12 astronomical unit.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between gigalight years and astronomical units.
Type in your own numbers in the form to convert the units!

## ››Quick conversion chart of gigalight-year to astronomical unit

1 gigalight-year to astronomical unit = 63197790929900 astronomical unit

2 gigalight-year to astronomical unit = 1.263955818598E+14 astronomical unit

3 gigalight-year to astronomical unit = 1.895933727897E+14 astronomical unit

4 gigalight-year to astronomical unit = 2.527911637196E+14 astronomical unit

5 gigalight-year to astronomical unit = 3.159889546495E+14 astronomical unit

6 gigalight-year to astronomical unit = 3.791867455794E+14 astronomical unit

7 gigalight-year to astronomical unit = 4.423845365093E+14 astronomical unit

8 gigalight-year to astronomical unit = 5.055823274392E+14 astronomical unit

9 gigalight-year to astronomical unit = 5.687801183691E+14 astronomical unit

10 gigalight-year to astronomical unit = 6.31977909299E+14 astronomical unit

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## ››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.

## ››Definition: Astronomical unit

The astronomical unit (AU or au or a.u. or sometimes ua) is a unit of length. It is approximately equal to the mean distance between the Earth and Sun. The currently accepted value of the AU is 149 597 870 691 ± 30 metres (about 150 million kilometres or 93 million miles).

The symbol "ua" is recommended by the Bureau International des Poids et Mesures, but in the United States and other anglophone countries the reverse usage is more common. The International Astronomical Union recommends "au" and international standard ISO 31-1 uses "AU".

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