| NOUN | quantity | secpar, parsec | a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc |
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| Meaning | A unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years. | |
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| Synonym | parsec | |
| Broader | astronomy unit | A linear unit used for astronomical distances |
| Spanish | parsec, pársec, secpar | |
| Catalan | parsec | |
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