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Light-year
Physical and technical specifications
Length
Usage and history
Purpose
Since theGalactic Standard Calendar year was 368 days, a Galactic Standard Light Year would have been 9,531,961,160,601,600 meters.
Behind the scenes[]
The above calculation assumes that the Galactic Standard Day, Hour, etc. and Meter are equal to Earth's, and results in anin-universe light year 0.75% longer than the real-world one.
It is also possible that Galactic days (and hours etc.) were 0.75% shorter than their Earth equivalents, and that the light years are the same length. (see below)
The length of a light year depends on the exact length of one year. On Earth, theInternational Astronomical Union (IAU) uses aJulian year of 365.25 days, while other sources may use aGregorian year of 365.2425 days, or anotheryear altogether.
| Source | year (days) | light year (meter) | light year (miles) |
|---|---|---|---|
| IAU | 365.25 | 9,460,730,472,580,800 | 5,878,625,373,184 |
| Gregorian | 365.2425 | 9,460,536,207,068,020 | 5,878,504,662,190 |
| 365.242199 | 9.460 528 4 ×1015 | 5.878 499 81 ×1012 | |
| Yahoo | 365.2411‡ | 9.460 5 ×1015 | 5,878,482,164,161 |
| Coruscant | 368 | 9,531,961,160,601,600 | 5,922,886,070,723 |
‡ While Yahoo separately reports a year length of 365.24220 days, its rounding of the light year length to five digits results in a year length of ~365.2411 days.
Appearances[]
Sources[]
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