Astronautics Vocabulary : année-lumière
The Astronautics Vocabulary is a glossary of terms that pertain to the science and technology of spaceflight. This alphabetical list can be navigated by clicking on the letters A-Z displayed on this page.
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Definition of light-year
- Translation:
- année-lumière
- Definition:
- The distance travelled through a vacuum by light (or any other form of electromagnetic radiation) in one year. A light year is equivalent to 9,460,700,000,000 km, 63,240 astronomical units or 0.3066 parsecs.
- Other Definition:
- None
- Synonym:
- None
- Date modified: