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light year▼◼◼◼
lightyear▼◼◻◻[UK: ˈlaɪtjɪə] [US: ˈlaɪtjɪə]
parsec▼◼◼◼[UK: ˈpɑː.ˌsek] [US: ˈpɑːr.ˌsek]
Proxima Centauri▼◼◼◼
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