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parsec    音标拼音: [p'ɑrs,ɛk]
n. 表示天体间距离的单位

表示天体间距离的单位

parsec
n 1: 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 [synonym: {parsec}, {secpar}]

parsec \par"sec\ (p[aum]r"s[e^]k), n. [From parallax second. See
{parallax second} and {annual parallax}, under {parallax}.]
(Astron.)
A unit of length used in describing astronomical distances,
equal to 3.26 light years, or 3.086 x 1013 km. Abbreviated
pc. The derived units of kiloparsec (kpc, 1000 parsecs) and
megaparsec (mpc, one million parsecs) are often found in
discussion of astronomical distances.
[PJC]


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  • Parsec Connection Failure Error -10 and -11 - Stack Overflow
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