Selected category: angle.
Selected initial unit : minute of angle.
Definition and details for minute of angle:
Minute (′ , m, moa) or minute of arc, or minute of angle is a unit of angular measure equal to 60 arcseconds, or 1/60 degree, or 1/21600 circle. This unit is often called arcminute to distinguish it from the minute of time. The SI defines symbol min for the time unit and recommends ′ as the symbol for the minute of angle. Symbol moa is often used in target shooting.
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