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arcsecond

/ˈɑːkˌsɛk.ənd/

翻译: 角度测量单位,等于一角分的六十分之一,常用于天文学和几何学。

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noun

C2formalcommonscientific/ˈɑːkˌsɛk.ənd/

A unit of angular measurement equal to one sixtieth of a minute of arc, used in astronomy and geometry.

  • 🇨🇳角度测量单位,等于一角分的六十分之一,常用于天文学和几何学。
  1. Unit of angular measurement C2 formal scientific

    A unit of angular measurement equal to one sixtieth of an arcminute, or 1/3600 of a degree.

    • The telescope can resolve details as small as one arcsecond.
    • The star's position was measured to within a few arcseconds.
    • One arcsecond is a very small angle, equivalent to the width of a human hair seen from 20 meters away.

    🇨🇳角秒

  • arcseconds plural form
  • arcseconds' possessive plural form
  • arcsecond's possessive singular form