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Definition of Secpar
1. Noun. 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.
Definition of Secpar
1. a parsec [n -S] - See also: parsec
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1. Noun. 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.
1. a parsec [n -S] - See also: parsec