An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian
فرهنگ ریشهشناختی اخترشناسی-اخترفیزیک
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arc second
کمان-ثانیه، ثانیهی ِ کمانی
kamân-sâniyé, sâniye-ye kamâni
Fr.: seconde de degré
A unit of angular size equal to 1/3.600 of a degree.
See also:
→
arc
; →
second
.
