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Hasil cari dari kata atau frase: parallax second (0.00931 detik)
Found 1 items, similar to parallax second.
English → English (gcide) Definition: parallax second parallax second \par"al*lax sec"ond\, n. An annual parallax of one second of an arc; -- applied to celestial objects outside the solar system. It is used to measure the distance of an astronomical object from the Earth. A star which has an annual parallax of one second of an arc is considered to be one parsec (3.26 light years) distant from the earth. See parsec in the vocabulary. [PJC]

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