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parsec

/ˈpɑːr.sɛk/

翻译: 天文学中的长度单位,等于从地球到天体视差为1角秒时的距离,约合3.26光年。

1 个条目

noun

/ˈpɑːr.sɛk/C2formalscientific
  • zh天文学中的长度单位,等于从地球到天体视差为1角秒时的距离,约合3.26光年。

A unit of astronomical length equal to approximately 3.26 light-years, based on the distance from Earth at which stellar parallax is one second of arc.

  1. Astronomical unit of distanceC2formalscientific

    A unit of length used in astronomy, equal to approximately 3.26 light-years or about 3.086 × 10^13 kilometers, based on the distance from Earth at which the angle of parallax is one arcsecond.

    zh秒差距

    • The nearest star to our solar system is about 1.3 parsecs away.
    • Astronomers measure distances to faraway galaxies in megaparsecs.
    • The parsec is a fundamental unit for mapping the universe.
词形
  • parsecs plural form
  • parsecs' possessive plural form
  • parsec's possessive singular form