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Definition of Parallax second
1. Noun. A unit of length used to measure the distances of stars from Earth, defined as the distance from the Earth of a star that has a parallax of 1 arcsecond. Approximately = 3.08568025 × 1016 meters = 3.2616 light-years. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Parallax Second
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