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angle unit comparison table
Subject has equivalent is an acronym for has base unit has unit has proposal date has definition has symbol has proposer is an instance of
arcminute1/60 degree    A unit of angle equal to 1/60 of a degree.  angle unit
arcsecond1/3600 degree    One sixtieth of an arcminute, or 1/3600 of a degree.  angle unit
degree     An angle subtended in the sky: From the zenith to the horizon is 90 degrees.  angle unit
radian57.29578°Syteme Internationalem·m-1 = 1defined in terms of derived SI unit via a system of quantity equations1873A measure of angular distance; 2π radians equals 360 degrees.radJames Thomsonnamed derived SI unit

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