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Hasil cari dari kata atau frase: parallax second (0.01109 detik)
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Definition: parallax second
parallax second \par"al*lax sec"ond\
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.