ly to Roman actus
92 unitsConvert Light year to Roman actus (ly to Roman actus)
1 light year = 2.666593e+14 Roman actus. Convert light years to Roman actus instantly, with the exact factor, the formula and a reference table of common values.
ly to Roman actus conversion table
| ly | Roman actus |
|---|---|
| 1 ly | 2.666593e+14 Roman actus |
| 2 ly | 5.333186e+14 Roman actus |
| 3 ly | 7.999779e+14 Roman actus |
| 5 ly | 1.333296e+15 Roman actus |
| 10 ly | 2.666593e+15 Roman actus |
| 20 ly | 5.333186e+15 Roman actus |
| 50 ly | 1.333296e+16 Roman actus |
| 100 ly | 2.666593e+16 Roman actus |
| 250 ly | 6.666482e+16 Roman actus |
| 500 ly | 1.333296e+17 Roman actus |
| 1000 ly | 2.666593e+17 Roman actus |
What is a light year?
A light year is a distance, not a time: it is how far light travels in one year, about 9.46 trillion kilometers. Light covers roughly 300,000 kilometers every second, and a year gives it a very long run.
Astronomers use light years because space is so empty. The nearest star beyond the Sun, Proxima Centauri, is about 4.2 light years away, and our galaxy is roughly 100,000 light years across. Seeing a star ten light years away means seeing light that left it ten years ago.
In writing, the light year is usually shortened to "ly". One light year is 9.460730e+15 meters, and that ratio is what every figure on this page is built from.