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The light-second is a unit of length useful in astronomy, telecommunications and relativistic physics. It is defined as the distance that light travels in free space in one second, and is equal to exactly 299792458 m (approximately 983571055 ft or 186282 miles).
Applications, Measurement & Science
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earth distance light-seconds unit sun one second length used defined telecommunications light-year also astronomical average equal exactly astronomy au si
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Light-second | astronomical units | 0.0020040 AU 3.1688×10−8 ly 9.7156×10−9 pc | 1.00 | infobox |
| Light-second | imperial/US units | 186282 mi | 1.00 | infobox |
| Light-second | SI units | 299792458 m | 1.00 | infobox |
| Light-second | Unit of | length | 1.00 | infobox |
| Light-second | is a | unit of length useful in astronomy | 0.90 | text |
| Light-second | is a | convenient unit for measuring distances in the inner Solar System | 0.90 | text |
| Light-second | related to Use in astronomy | The | 0.60 | section |
| Light-second | related to Use in astronomy | Solar System | 0.60 | section |
| Light-second | related to Use in astronomy | Earth-based | 0.60 | section |
| Light-second | related to Use in astronomy | Earth | 0.60 | section |
| Light-second | related to Use in astronomy | Sun | 0.60 | section |
| Light-second | related to Use in astronomy | It | 0.60 | section |
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