Units of measurement
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Arcsecond ('')
Radian (rad)
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Information
Arcsecond ('')
Arcsecond ('') — a unit of angle measurement, equal to 1/60 of an arcminute or 1/3600 of a degree.
Radian (rad)
Radian (rad) — a unit of angle measurement in the International System of Units (SI), equal to the angle where the length of the arc of a circle is equal to its radius.